sum of all numbers between 50 and 250
Answers
Answered by
0
50+51+52+.....+250
this is an arithmetic sequence with
a=50
d=1
n=(250-50)+1= 201
sum of n terms= (n/2)[a+nth term]
sum of 201 terms
= (201/2)(50+250)
= (201×300)÷2
= 201×150
=30150
Similar questions