Question

These number groups all follow the same rule. What is the missing number?
[4, 6, 4] [2, 5, 9] [1, 8, 49] [3, 7, __ ]
A) 16
B) 20
C) 25
D) 32

Answer 1

Answer A

6-4=2, 2^2=4
So 7-3=4, 4^2=16