If x-a-y-b-1 and x-y-2 b-5- find - a -

The correct option is A 5 Given, x=y=2b=5 ⇒ x=5,y=5,b=5/2 But x/a+y/b=1 ⇒5/a+5/5/2=1 ⇒5/a+10/5=1 ⇒5/a=1 2 ⇒5/a= 1 ⇒ a= 5 ...

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Byju's Answer

Standard VI

Mathematics

Addition of Polynomials

If x/a+y/b=1 ...

Question

$If \frac{x}{a} + \frac{y}{b} = 1 and x=y=2b=5, find 'a'.$

-1

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-5

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Solution

The correct option is E
-5

$Given, x=y=2b=5 \Rightarrow x = 5, y = 5, b = \frac{5}{2} B u t \frac{x}{a} + \frac{y}{b} = 1 \Rightarrow \frac{5}{a} + \frac{5}{5 / 2} = 1 \Rightarrow \frac{5}{a} + \frac{10}{5} = 1 \Rightarrow \frac{5}{a} = 1 - 2 \Rightarrow \frac{5}{a} = - 1 \Rightarrow a = - 5$

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If xa+yb=1 and x=y=2b=5, find 'a'.

The correct option is E -5 Given, x=y=2b=5⇒x=5,y=5,b=52But xa+yb=1⇒5a+55/2=1⇒5a+105=1⇒5a=1−2⇒5a=−1⇒a=−5

$If \frac{x}{a} + \frac{y}{b} = 1 and x=y=2b=5, find 'a'.$

The correct option is E
-5

$Given, x=y=2b=5 \Rightarrow x = 5, y = 5, b = \frac{5}{2} B u t \frac{x}{a} + \frac{y}{b} = 1 \Rightarrow \frac{5}{a} + \frac{5}{5 / 2} = 1 \Rightarrow \frac{5}{a} + \frac{10}{5} = 1 \Rightarrow \frac{5}{a} = 1 - 2 \Rightarrow \frac{5}{a} = - 1 \Rightarrow a = - 5$