Question

The first tem
of an A.P. is 5 and the last term is 45. If the sum of a
terms is 400
Sto the number of terms is
sum of all th
(A)
20
(B)
(C)
(D)
8
10
16
OR​

Answer 1

Step-by-step explanation:

here is ur answer buddy 16

Answer 2

Answer:

I think 16.

I am not sure.