Question

5. The average of first five multiples of 3 is :
(a) 3
(b) 9
(d) 15
(c) 12​

Answer 1

Answer:

The first 5 multiples of 3 = 3, 6, 9, 12, 15

the average is 3+6+9+12+15 = 45

45/5 = 9.

answer is 9

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Answer 2

• To find -

• Average of first five multiples of three.

• Solution

First five multiples of three = 3, 6, 9, 12, 15

Average = Sum of all the terms/No. of terms

Sum of all the five terms = 3 + 6 + 9 + 12 + 15 = 45

No. of terms = 5

⇛ (3 + 6 + 9 + 12 + 15)/5

⇛ 45/5

⇛ 9

•°• The average if first five multiples of three = 9

Answer ⇛ (b) 9