Question

Calculate the average of all multiples of 10 from 2 to 198

Answer 1

hey friend,

here is ur answer...Sum of multiples of 10 from 2 to 198

= 10+20+30+…………..+190

= 10(1+2+3+4+…+19)

=(10*19*20)/2

=1900

Total no. of multiples of 10 between 2 and 198 is 19.

Therefore average = 1900/19 = 100

Hope this helps. :)