Correct Answer - Option 3 : 21
Given:
We have to find the average of first 6 positive multiples of 6
Concept Used:
Average = Sum of observation / Number of observation
Calculation:
First 6 positive multiple of 6 are
6 × 1 = 6
6 × 2 = 12
6 × 3 = 18
6 × 4 = 24
6 × 5 = 30
and 6 × 6 = 36
Required average = (6 + 12 + 18 + 24 +30 + 36) / 6
⇒ 216/6
⇒ 21
∴ The required average is 21.
