Question

find the mean of the first six multiples of 3.

Answer 1

first six multiples are 3,6,9,12,15,18
mean=3+6+9+12+15+18/6
=63/6=10.5

Answer 2

mean of first six multiple of 3 is 3+6+9+12+15+18/6=63/6=10.5