Question

find the means of first six multiple of 3

Answer 1

First five multiple of 3 are:

3, 6, 9, 12, 15

Here first term, a = 3

common difference, d = 6 – 3 = 3

Number of term, n = 5



⇒ s5 = 9 × 5 = 45

Answer 2

Answer:

Step-by-step explanation: