Question

Find the average of the first five odd multiples of 3 and the prime numbers from 11 to 20.

Answer 1

Step-by-step explanation:

First five odd multiples of 3 = 3,9,15,21,27

prime numbers from 11 to 20 = 11,13,17,19

average= (sum of terms/number of terms)

= (3+9+15+21+27+11+13+17+19)/9= 135/9= 15