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Question

I f \frac{y}{x} = \frac{1}{3} a n d x + 2 y = 10, t h e n x i s -

3 : 7

ANSWER : 4

Descrption

<pre>
Given , <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mi>y</mi><mi>x</mi></mfrac><mo> = </mo><mfrac><mn>1</mn><mn>3</mn></mfrac><mspace linebreak = "newline"/><mo>&#x21D2;</mo><mi>x</mi><mo> = </mo><mn>3</mn><mi>y</mi><mo>&#xA0;</mo><mo>.</mo><mo>.</mo><mo>.</mo><mo>.</mo><mo>&#xA0;</mo><mo>(</mo><mi>i</mi><mo>)</mo><mo>&#xA0;</mo><mspace linebreak = "newline"/><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#xA0;</mo><mi>x</mi><mo>  +  </mo><mn>2</mn><mi>y</mi><mo>&#xA0;</mo><mo> = </mo><mn>10</mn><mo>&#xA0;</mo><mspace linebreak = "newline"/><mo>&#x21D2;</mo><mn>3</mn><mi>y</mi><mo>  +  </mo><mn>2</mn><mi>y</mi><mo> = </mo><mn>10</mn><mo>&#xA0;</mo><mspace linebreak = "newline"/><mo>&#x21D2;</mo><mn>5</mn><mi>y</mi><mo> = </mo><mn>10</mn><mspace linebreak = "newline"/><mo>&#x21D2;</mo><mi>y</mi><mo> = </mo><mfrac><mn>10</mn><mn>5</mn></mfrac><mspace linebreak = "newline"/><mo>.</mo><mo>'</mo><mo>.</mo><mo>&#xA0;</mo><mi>y</mi><mo> = </mo><mn>2</mn><mspace linebreak = "newline"/><mi>a</mi><mi>g</mi><mi>a</mi><mi>i</mi><mi>n</mi><mo>,</mo><mo>&#xA0;</mo><mi>x</mi><mo> = </mo><mn>3</mn><mi>y</mi><mspace linebreak = "newline"/><mo>&#x21D2;</mo><mi>x</mi><mo> = </mo><mn>3</mn><mo>.</mo><mn>2</mn><mspace linebreak = "newline"/><mo>.</mo><mo>'</mo><mo>.</mo><mo>&#xA0;</mo><mi>x</mi><mo> = </mo><mn>6</mn><mo>&#xA0;</mo><mspace linebreak = "newline"/></math>
</pre>

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