Analogy Analogy 3 - Verbal Reasoning Questions and Answers

In each of the following questions find out the alternative which will replace the question mark.

11.

10 : 99 :: 9 : ?

12.

8 : 24 :: ? : 32

13.

144 : 10 :: 169 : ?

14.

9 : 8 :: 16 : ?

15.

In this pyramid number if: 11 22 31 : 12 21 32 :: 9 12 21 : ?