Question

The sum of first 24 term of the As 100, 95, 90, ……………..is​

Answer 1

Given series is an arithmetic progression where the,

First term, a=100

Common difference, d=(95)-(100)=-5

Now the sum of the arithmetic progression is given by

S=n/2 [2a+(n-1)d]

S=24/2[2*100+(24-1)-5]

-->2616