Central Tendency & DispersionMTP Apr 21Question 3057 of 473

The A.M and H.M for two numbers are 5 and 3.2 respectively then the G.M will be

Options

A4.05

B4

C4

D4.10

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Correct Answer

✅ Option b — 4

All Options:

A4.05
B4
C4
D4.10

Detailed Solution & Explanation

**Step 1: Recall GM² = AM × HM.**

\text{GM}^2 = 5 \times 3.2 = 16

\text{GM} = \sqrt{16} = 4

The correct answer is GM =

\displaystyle 4

, which matches Options B and C (both show 4). The exam key incorrectly marks A (

\displaystyle 4.05

). Hence, **Option B** is the correct answer.

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