Question

The sum of all the whole numbers from 1 to 1000 is

Answer 1

The sum of all whole numbers from 1 to 1000 is 500500

Solution:

The sum of “n” whole numbers is given as,

`Sum = \bold{(n(n + 1))/(2)}` ---- eqn 1

Where “n” represents the total number of terms.

Given that we have to find the sum of all whole numbers from 1 to 1000. This can be written as,

Sum of { 1,2,3,……….., 1000}

So here, total number of terms “n” = 1000.

By using equation 1, we can find the sum as,

Sum =
`(1000(1000 + 1))/(2)`

`= (1000(1001))/(2)`

= 500(1001)

= 500500

Hence the sum of all whole numbers from 1 to 1000 is 500500