Question

For each integer n 1, the
100
=S(100)=1 +2+3+...+100 =5050.
n=1
What is the value of S(200)?
(A) 10,100
(B) 15,050
(C) .20,100
(D) 15,150​

Answer 1

(C) 20100 (using A.P)

Answer 2

Your answer is c

since for finding the sum of a series of number the following formula is used

=n(n+1)/2

=200(200+1)/2

=(200×201)/2

=100×201

=20100

It is your answer.