Question

What is the sum of the whole numbers from 1 to 1000?

Please show a complete solution.

Answer 1

Answer:

watching this is a correct answer according to me

Answer 2

Given sequence of AP is

1,2,3..........1000

Let's find out a, d , n and other required terms from above AP

a =. 1

d =. 1

n = 1000

l = 1000

Formula for sum of n terms when last term is given is

$sn = \frac{n}{2} (a + l)$

S1000 = 1000/2(1+1000)

S1000= 500 ( 1001)

S1000= 500500

So sum of whole numbers from 1 to 1000 is 500500

Hope it helps