What is the next number in the series?
1, 4, 16, __
Show answer & explanation
Correct answer: B
Explanation
Series: 1, 4, 16, __
Pattern:
1 × 4 = 4
4 × 4 = 16
The series follows multiplication by 4, hence next term:
16 × 4 = 64
Option (2) is the correct answer.