A. +8
B. +15
C. +10
D. +13
🧠 Explanation (Math):
Given: Mean proportional of 4 and 16 Step 1: Geometric mean = √(4 × 16) = √64 = 8 Final Answer: +8
A. +8
B. +15
C. +10
D. +13
Given: Mean proportional of 4 and 16 Step 1: Geometric mean = √(4 × 16) = √64 = 8 Final Answer: +8
