1.  Choose the odd numeral pair/group in each of the following question :

A. 4, 16, 24, 12
B. 2, 8, 4, 16
C. 1, 4, 2, 8
D. 3, 12, 6, 24

Answer: Option A

Explanation:

In all other groups, the numbers are in the ratio 1 : 4 : 2 : 8.