Question

2,4,6,8,10.........102

Find the sum of AP???

Answer 1

Hey.

Tn=a+(n-1)d
102=2+(n-1)2
102=2n
n=51
Now sum of ap=n/2(a+l)
Sm=51/2(2+102)
51*52
=2652 is right a answer.

Answer 2

Hey...
Hope this would help you.
Mark it as brainliest if you like.
@Saadya