Question

Find the mean of first four multiples of 5?

Answer 1

first four multiples of 5 are- 5,10,15,20

mean= (5+10+15+20)/4
=50/4
=25/2
=12.5

hope it helps you

Answer 2

The first four multiples of 5 are

$5 \times 1 = 5 \\ 5 \times 2 = 10 \\ 5 \times 3 = 15 \\ 5 \times 4 = 20$
the mean of first four multiples of 5 are

$\frac{5 + 10 + 15 + 20}{4} \\ \frac{50}{4} \\ = 12.5$