Which letter will replace the question mark (?) in the following series?
Y4, V9, S25, P49, ?
Answer & explanation
Correct answer: option 4
According to the above alphabet position:
Y4 ⇒ (25), 22
V9 ⇒ (22), 32
S25 ⇒ (19), 52
P49 ⇒ (16), 72
? ⇒ (13), 112 = M121
(subtract 3 in 1st alphabet position and there is square of prime numbers in 2nd alphabet position)