Question

What is the sum of the first 12 terms of an arithmetic progression if the first term is 3 and last term is 47?

A) 260 B) 300 C) 280 D) 220

Answer 1

Answer:

B) (300)is the correct answer

Step-by-step explanation:

s=n/2(a+l)

s=12/2(3+47)

s=6(50)

s=300