Which letter will replace the question mark (?) in the following series?
CD, FH, IL, LP, OT, ?
Answer & explanation
Correct answer: option 2
According to the above alphabet position:
CD ⇒ (3) (4)
FH ⇒ (6) (8)
IL ⇒ (9) (12)
LP ⇒ (12) (16)
OT ⇒ (15) (20)
? ⇒ (18) (24) ⇒ RX
(add 3 in 1st alphabet position and 4 in 2nd alphabet position)