In the following question, select the related number pair from the given alternatives:
15 : 256 :: 18 : ?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 361
15 : 256 :: 18 : ?
THE LOGIC FOLLOWED HERE IS
(IST NUMBER + 1)2 = IIND NUMBER
AS
(15 + 1)2 = IIND NUMBER
(16)2 = IIND NUMBER
256 = IIND NUMBER
SIMILARLY
18 : ?
(18 + 1)2 = IIND NUMBER
(19)2 = IIND NUMBER
361 = IIND NUMBER