Two A.P.’s have the same common difference. The first term of one of these is 8 and that of the other is 3. The difference between their 30^th terms is

A. 11

B. 3

C. 8

D. 5

Answer: Option D

Solution(By Examveda Team)

In two A.P.’s common-difference is same
Let A and a are two A.P. ’s
First term of A is 8 and first term of a is 3
A₃₀ – a₃₀ = 8 + (30 – 1) d – 3 – (30 – 1) d
= 5 + 29d – 29d
= 5