Select the option that is related to the sixth number in the same way as the first number is related to the second number and the third number is related to the fourth number.
11 : 81 :: 22 : 400 :: ? : 225
Answer & explanation
Correct answer: option 3
11 : 81 :: 22 : 400 :: ? : 225
The logic followed here is :
(Ist term - 2)2 = IInd number
AS
11 : 81
(11 - 2)2
= 92
= 81
And
22 : 400
(22 - 2)2
= 202
= 400
Similarly
? : 225
(17 - 2)2
= 152
= 225
Hence 17 is correct answer