Discussion Forum



Here, the terms of the given series are a combination of letters and numerals, which have according to a set pattern.

1)

W-144, ?, S-100, Q-81, O-64


A) U-121

B) U-122

C) V-121

D) V-128

Answer:

Option A

Explanation:

Letters : $W-2\rightarrow U, U-2\rightarrow S, S-2\rightarrow Q, Q-2\rightarrow O$

Numbers : 144 (122) → 121 (112) → 100 (102) → 81 (92) → 64 (82)

Hence the answer is (a).