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

KP2 : PK16  :: AG3 : FB81  :: TR5 : ?

YM625

In this analogy, 5 is added to the place value of first letter and 5 is subtracted from the second letter.

The numbers are related as the second number is fourth power of the number in first term

For example, K  P  2 becomes  P  K  16

                     11 16                 16  11  2⁴

The sixth term can be obtained as - 

T    R    5              ⇒    Y   M     625 

20  18                        25   13   5⁴