Select the option that is related to the fourth number in the same way as the first number is related to the second number and the fifth number is related to the sixth number.

485 : 25 :: ? : 21 :: 401 : 23

325

485 : 25 :: ? : 21 :: 401 : 23

The logic followed here is :

(IInd number - 3)² + 1 = ist  number

AS

(25 - 3)² + 1

= 22² + 1

= 484 + 1 = 485

And

401 : 23

(23 - 3)² + 1

= 20² + 1

= 400 + 1 = 401

Similarly

? : 21

(21 - 3)² + 1

= 18² + 1

= 324 + 1 = 325