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Question
when the price of an article is reduced by 15% the sales increases by 35% . The percentage change in the total amount of receipts is-
14 of 3/4 decrease
14 lof 3/4 increse
13 of 3/4 decrease
None of them
ANSWER : 2
Descrption
<pre>If one increased and another reduced/decreased then the formula is <math xmlns = "http://www.w3.org/1998/Math/MathML"><mi>P</mi><mo> - </mo><mi>Q</mi><mo> - </mo><mfrac><mrow><mi>P</mi><mo>×</mo><mi>Q</mi></mrow><mn>100</mn></mfrac><mspace linebreak = "newline"/><mo> = </mo><mn>35</mn><mo> - </mo><mn>15</mn><mo> - </mo><mfrac><mrow><mn>35</mn><mo>×</mo><mn>15</mn></mrow><mn>100</mn></mfrac><mo> = </mo><mn>20</mn><mo> - </mo><mn>5</mn><mo>·</mo><mn>25</mn><mspace linebreak = "newline"/><mo> = </mo><mn>14</mn><mo>·</mo><mn>75</mn><mo>%</mo><mo> </mo><mi>ব</mi><mi>া</mi><mo> </mo><mn>14</mn><mo> </mo><mi>o</mi><mi>f</mi><mo> </mo><mfrac><mn>3</mn><mn>4</mn></mfrac><mo>%</mo><mo> </mo><mi>i</mi><mi>n</mi><mi>c</mi><mi>r</mi><mi>e</mi><mi>a</mi><mi>s</mi><mi>e</mi></math> </pre>
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