SSC CPO 2024 PYQ — Question 121

The correct answer is Option 1 i.e.$25 \over 16$.

The sum of two numbers x and y equals four times their difference

⇒ x + y = 4(x - y)

⇒ x + y = 4x - 4y

⇒ 4x - x = y + 4y

⇒ 3x = 5y

⇒ x/y = 5/3

On putting the values in $5xy \over {3(x^2 - y^2)}$

⇒ $5\times 5\times3 \over {3(5^2 - 3^2)}$

⇒ $25 \over {(25 - 9)}$ = $25 \over {16}$