Question

What is the sum of 151+152+153 _ _ _ _ + 200​

Answer 1

Answer:

8775

Step-by-step explanation:

we have a formula for calculate summation for first n nature number

n=n(n+1)/2

so for first 150 number summation is

s150=150(150+1)/2

=11325

and first 200 numbers is

s200=200(200+1)/2

s200= 20100

so to calculate summation of numbers from 151 to 200 is

sum=s150-s200

=20100-11325

=8775