Question

Find the value of $\frac{1}{2x+2y}$, given that $\frac{x+y}{0.01}=7$

• A. $0.14$
• B. $0.28$
• C. $3.50$
• D. $7.00$
• E. $7.14$

Answer 1

The correct option is E $7.14$

Given, $\frac{x+y}{0.01}=7$
$\Rightarrow x+y=0.07$

$\Rightarrow 2x+2y=0.14$ .... (Multiplying $2$ on both the sides)
$\Rightarrow \frac{1}{2x+2y}=\frac{1}{0.14}=7.14$