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Question
Two numbers are such that the ratio between them is 4:7 . If each is increased by 4, the ratio becomes 3:5 . The larger number is :
36
48
56
64
ANSWER : 3
Descrption
<p><span style = "font - family: 'Open Sans', Arial, sans - serif; font - size: 15.73px; line - height: 22.022px; background - color: #ffffff;">A : B</span><br style = "outline: none; box - sizing: border - box; font - family: 'Open Sans', Arial, sans - serif; font - size: 15.73px; line - height: 22.022px;" /><span style = "font - family: 'Open Sans', Arial, sans - serif; font - size: 15.73px; line - height: 22.022px; background - color: #ffffff;">4x : 7x</span><br style = "outline: none; box - sizing: border - box; font - family: 'Open Sans', Arial, sans - serif; font - size: 15.73px; line - height: 22.022px;" /><span style = "font - family: 'Open Sans', Arial, sans - serif; font - size: 15.73px; line - height: 22.022px; background - color: #ffffff;">Now 4 is added to each number</span></p> <div class = "MathJax_Display" style = "outline: none; box - sizing: border - box; margin: 1em 0em; padding: 0px; border: 0px; font - stretch: inherit; font - size: 14.157px; line - height: 22.022px; font - family: 'Open Sans', Arial, sans - serif; vertical - align: baseline; text - align: inherit; position: relative; display: inline; max - width: none; max - height: none; min - width: 0px; min - height: 0px; width: auto;"><span id = "MathJax - Element - 1 - Frame" class = "MathJax" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - variant: inherit; font - stretch: inherit; font - size: 14.157px; line - height: normal; font - family: inherit; vertical - align: baseline; display: inline; text - align: inherit; word - spacing: normal; word - wrap: normal; white - space: nowrap; float: none; direction: ltr; max - width: none; max - height: none; min - width: 0px; min - height: 0px; position: relative;" tabindex = "0" role = "presentation" data - mathml = "<math xmlns = "http://www.w3.org/1998/Math/MathML" display = "block"><mtable columnalign = "right left" rowspacing = ".5em" columnspacing = "thickmathspace" displaystyle = "true"><mtr><mtd /><mtd><mfrac><mrow class = "MJX - TeXAtom - ORD"><mn>4</mn><mi>x</mi><mo> + </mo><mn>4</mn></mrow><mrow class = "MJX - TeXAtom - ORD"><mn>7</mn><mi>x</mi><mo> + </mo><mn>4</mn></mrow></mfrac><mo> = </mo><mfrac><mn>3</mn><mn>5</mn></mfrac></mtd></mtr><mtr><mtd /><mtd><mo stretchy = "false">&#x21D2;</mo><mn>20</mn><mi>x</mi><mo> + </mo><mn>20</mn><mo> = </mo><mn>21</mn><mi>x</mi><mo> + </mo><mn>12</mn></mtd></mtr><mtr><mtd /><mtd><mo stretchy = "false">&#x21D2;</mo><mi>x</mi><mo> = </mo><mn>8</mn></mtd></mtr></mtable></math>"><span id = "MathJax - Span - 1" class = "math" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline - block; position: static; width: 12.859em;"><span style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: 18.6872px; font - family: inherit; vertical - align: 0px; transition: none; display: inline - block; position: relative; width: 9.729em; height: 0px;"><span style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; position: absolute; clip: rect( - 0.816em 1009.54em 4.577em - 999.998em); top: - 2.116em; left: 0em;"><span id = "MathJax - Span - 2" class = "mrow" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span id = "MathJax - Span - 3" class = "mtable" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0.147em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline - block; position: relative; width: 10.596em; height: 0px;"><span style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; position: absolute; clip: rect(2.988em 1000em 6.84em - 999.998em); top: - 4.572em; left: 0em;"><span style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline - block; position: relative; width: 0em; height: 0px;"><span style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; position: absolute; clip: rect(3.854em 1000em 4.143em - 999.998em); top: - 5.439em; right: 0em;"><span id = "MathJax - Span - 4" class = "mtd" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span id = "MathJax - Span - 5" class = "mrow" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"></span></span></span><span style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; position: absolute; clip: rect(3.854em 1000em 4.143em - 999.998em); top: - 3.368em; right: 0em;"><span id = "MathJax - Span - 25" class = "mtd" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span id = "MathJax - Span - 26" class = "mrow" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"></span></span></span><span style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; position: absolute; clip: rect(3.854em 1000em 4.143em - 999.998em); top: - 1.875em; right: 0em;"><span id = "MathJax - Span - 39" class = "mtd" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span id = "MathJax - Span - 40" class = "mrow" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"></span></span></span></span></span><span style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; position: absolute; clip: rect(2.988em 1010.26em 8.188em - 999.998em); top: - 5.92em; left: 0.291em;"><span style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline - block; position: relative; width: 10.307em; height: 0px;"><span style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; position: absolute; clip: rect(2.506em 1005.39em 4.914em - 999.998em); top: - 5.439em; left: 0em;"><span id = "MathJax - Span - 6" class = "mtd" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span id = "MathJax - Span - 7" class = "mrow" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span id = "MathJax - Span - 8" class = "mfrac" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span style = "outline: none; box - sizing: border - box; margin: 0px 0.099em; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline - block; position: relative; width: 2.94em; height: 0px;"><span style = "outline: none; box - sizing: border - box; margin: 0px 0px 0px - 1.394em; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; position: absolute; clip: rect(3.18em 1002.79em 4.24em - 999.998em); top: - 4.668em; left: 27.4688px;"><span id = "MathJax - Span - 9" class = "texatom" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span id = "MathJax - Span - 10" class = "mrow" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span id = "MathJax - Span - 11" class = "mn" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;">4</span><span id = "MathJax - Span - 12" class = "mi" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Math - italic; vertical - align: 0px; transition: none; display: inline; position: static;">x</span><span id = "MathJax - Span - 13" class = "mo" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.243em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;"> + </span><span id = "MathJax - Span - 14" class = "mn" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.243em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;">4</span></span></span></span><span style = "outline: none; box - sizing: border - box; margin: 0px 0px 0px - 1.394em; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; position: absolute; clip: rect(3.18em 1002.79em 4.24em - 999.998em); top: - 3.32em; left: 27.4688px;"><span id = "MathJax - Span - 15" class = "texatom" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span id = "MathJax - Span - 16" class = "mrow" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span id = "MathJax - Span - 17" class = "mn" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;">7</span><span id = "MathJax - Span - 18" class = "mi" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Math - italic; vertical - align: 0px; transition: none; display: inline; position: static;">x</span><span id = "MathJax - Span - 19" class = "mo" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.243em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;"> + </span><span id = "MathJax - Span - 20" class = "mn" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.243em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;">4</span></span></span></span></span></span><span id = "MathJax - Span - 21" class = "mo" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.291em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;"> = </span><span id = "MathJax - Span - 22" class = "mfrac" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.291em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span style = "outline: none; box - sizing: border - box; margin: 0px 0.099em; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline - block; position: relative; width: 0.628em; height: 0px;"><span style = "outline: none; box - sizing: border - box; margin: 0px 0px 0px - 0.238em; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; position: absolute; clip: rect(3.18em 1000.44em 4.143em - 999.998em); top: - 4.668em; left: 5.85938px;"><span id = "MathJax - Span - 23" class = "mn" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;">3</span></span><span style = "outline: none; box - sizing: border - box; margin: 0px 0px 0px - 0.238em; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; position: absolute; clip: rect(3.18em 1000.44em 4.143em - 999.998em); top: - 3.32em; left: 5.85938px;"><span id = "MathJax - Span - 24" class = "mn" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;">5</span></span></span></span></span></span></span><span style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; position: absolute; clip: rect(3.18em 1010.26em 4.24em - 999.998em); top: - 3.368em; left: 0em;"><span id = "MathJax - Span - 27" class = "mtd" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span id = "MathJax - Span - 28" class = "mrow" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span id = "MathJax - Span - 29" class = "mo" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;">⇒</span><span id = "MathJax - Span - 30" class = "mn" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.291em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;">20</span><span id = "MathJax - Span - 31" class = "mi" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Math - italic; vertical - align: 0px; transition: none; display: inline; position: static;">x</span><span id = "MathJax - Span - 32" class = "mo" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.243em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;"> + </span><span id = "MathJax - Span - 33" class = "mn" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.243em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;">20</span><span id = "MathJax - Span - 34" class = "mo" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.291em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;"> = </span><span id = "MathJax - Span - 35" class = "mn" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.291em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;">21</span><span id = "MathJax - Span - 36" class = "mi" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Math - italic; vertical - align: 0px; transition: none; display: inline; position: static;">x</span><span id = "MathJax - Span - 37" class = "mo" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.243em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;"> + </span><span id = "MathJax - Span - 38" class = "mn" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.243em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;">12</span></span></span></span><span style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; position: absolute; clip: rect(3.18em 1003.66em 4.143em - 999.998em); top: - 1.875em; left: 0em;"><span id = "MathJax - Span - 41" class = "mtd" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span id = "MathJax - Span - 42" class = "mrow" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; transition: none; display: inline; position: static;"><span id = "MathJax - Span - 43" class = "mo" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;">⇒</span><span id = "MathJax - Span - 44" class = "mi" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.291em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Math - italic; vertical - align: 0px; transition: none; display: inline; position: static;">x</span><span id = "MathJax - Span - 45" class = "mo" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.291em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;"> = </span><span id = "MathJax - Span - 46" class = "mn" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px 0px 0px 0.291em; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: MathJax_Main; vertical - align: 0px; transition: none; display: inline; position: static;">8</span></span></span></span></span></span></span></span></span></span></span></span><span class = "MJX_Assistive_MathML MJX_Assistive_MathML_Block" style = "outline: none; box - sizing: border - box; margin: 0px; padding: 0px; border: 0px; font - style: inherit; font - variant: inherit; font - weight: inherit; font - stretch: inherit; font - size: inherit; font - family: inherit; vertical - align: 0px; top: 0px; left: 0px; clip: rect(1px 1px 1px 1px); - webkit - user - select: none; position: static; width: 182.031px; display: inline; transition: none; height: 1px !important; overflow: hidden !important;" role = "presentation">4x + 47x + 4 = 35⇒20x + 20 = 21x + 12⇒x = 8</span></span></div> <p><br style = "outline: none; box - sizing: border - box; font - family: 'Open Sans', Arial, sans - serif; font - size: 15.73px; line - height: 22.022px;" /><span style = "font - family: 'Open Sans', Arial, sans - serif; font - size: 15.73px; line - height: 22.022px; background - color: #ffffff;">∴ Smaller number is 4 × 8 = 32</span><br style = "outline: none; box - sizing: border - box; font - family: 'Open Sans', Arial, sans - serif; font - size: 15.73px; line - height: 22.022px;" /><span style = "font - family: 'Open Sans', Arial, sans - serif; font - size: 15.73px; line - height: 22.022px; background - color: #ffffff;">Larger number is 7 × 8 = 56</span></p>
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