SSC GD 2023 PYQ — Question 45

The correct answer is option 3 i.e. 352.

Let the given numbers, a, b, and c, be in the ratio.

So,

a : b : c

⇒ a/b = b/c

The mean proportion between 256 and 484 = 256 : x : 484

⇒ 256/x = x/484

⇒ x² = 256 × 484

⇒ x = 16 × 22 = 352