In the following question, select the related number from the given alternatives.
2 : 9 :: 3 : ?
A27
B28
C29
D30
A27
B28
C29
D30
Related Questions:
Select the option that is related to the third term in the same way as the second term is related to the first term and sixth term is related to fifth term.
4 ∶ 18 ∶∶ 12 ∶ ? ∶∶ 7 ∶ 51