Question

The average of two digit multiples of 10 is

Answer 1

Hi...☺

Here is your answer...✌

Two digit multiples of 10 are

10 , 20 , 30 , 40 , 50 ,60 , 70 , 80 and 90

Sum of these multiples

= 10+20+30+40+50+60+70+80+90

= 450

Now,

$Average = \frac{sum \: of \: multiples}{total \: number\: of \: multiples} \\ \\ = \frac{450}{9} \\ \\ = 50$

HENCE,

The average of two digit multiples of 10 is 50