What is the average of the first 11 multiples of 3? MCQ with Answer and Explanation

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What is the average of the first 11 multiples of 3?

A. 16.5

B. 18

C. 19

D. 17

Answer: Option B

Solution (By JKSSB Mock Tests)

Multiples: 3,6,9,...,33. Sum = 3×(1+2+...+11) = 3×66=198. Count=11. Average=198/11=18.

This question belongs to: Maths Average

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