Select the number pair in which two numbers are related in the same way as the two numbers are related in the number pair given below.
36 : 84 :: ? : ?
1) 57: 135
2) 27: 63
3) 21: 51
4) 45 : 95

Options

A. 57 : 135
B. 27 : 63
C. 21 : 51
D. 45 : 95

Answer

B

Explanation

36 = 3 x 12
84 = 7 x 12
Similarly,
27 = 3 x 9
63 = 7 x 9
Hence, option (b) is the correct answer