Find the sum of first 100 even natural numbers which are divisible by 5.This is a question of A. P.

Find the sum of first 100 even natural numbers which are divisible by

1.	Find the sum of first 100 even natural numbers which are divisible by 5.This is a question of A. P.
Answer» numbers are 10,20,30,40,........................they form an APa=10d=10s100 = 50(20 + 990) = 50 x 1010 = 50500