Q. 8 If the list of letters, P,R,S,T,U is an arithmetic sequence, which of the following are also in arithmetic sequence?
I. 2P, 2R, 2S , 2T , 2U
II. P – 3, R – 3, S – 3, T – 3, U – 3
III. P2, R2, S 2, T2, U2
(A) I only
(B) I and II
(C) II and III
(D) I and III
Answer: (B)
Explanation: