Correct Answer:
Explanation:
4/√x + 7/√x = √x; ⇒ 11/√x = √x ∴ x = 11 and y2 - (11)5/2/√y = 0 ⇒ y2 = (11)5/2/(y)1/2 ⇒ y2 x y1/2 = (11)5/2 ⇒ (y)5/2 = (11)5/2 ∴ y = 11 ∴ x = y