Find the sum of all natural numbers lying between 100 and 1000, which are multiples of 5.

(i) Find the sum of odd integers from 1to 2001. (ii) Find the sum of all natural numbers between 99 and 1001, which are multiples of 5.

The sum of all natural numbers between 100 and 200, which are multiples of 3 is :

Find the sum of all natural numbers between 1 and 100, which are divisible by 3.

Find the sum of all natural numbers between 1 and 100, which are divisible by 2 or 5

Find the sum of natural numbers and lying between 100 and 200 which leave a remainder of 2 when divided by 5 in each case.