Select the option that is related to the third number in the same way as the second number is related to the first number.
9 : 121 :: 7 : ?
Answer & explanation
Correct answer: option 3
9 : 121 :: 7 : ?
The logic followed here is:
(Ist number + 2 )2 = IInd number
Given
9 + 2 = 112 = 121
Similarly
7 + 2 = 92 = 81