Question

find the sum of alll integers between 50 and 500​

Answer 1

Answer:

use A. P

let's a=51,common difference =1, and last term =499

from that you find

second method

we know that the sum of nature numbers formula = n(n+1)/2

use it

Step-by-step explanation:

find the sum of 499 natural numbers first

which is 500*499/2

250*499

then find the sum sum of first 50 integers

= 50*51/2=25*51

so the required answer = 250*499-25*51

=123475

please note that in the above question 50 and 500 not included

Answer 2

Answer:

Step-by-step explanation:

simplest way

500-50=450

450× 450=202500

hope that helps you dear