SSC CPO 2023 PYQ — Question 112

The correct answer is option 3 i.e. 72.

Concept used:

Mean proportion of a and b = √ab

Calculations:

Let the value of the mean proportion be b.

According to the question;

⇒ 32/b = b/162

⇒ b² = 32 × 162

⇒ b = √5184 = 72