Identify the missing number in the series: 12, 24, 48, 96, ?

B. 192

What number should replace the question mark in the series: 2, 4, 8, 16, ?

B. 32

What is the missing number in the series: 2, 4, 8, 16, ?, 64?

B. 32

What is the missing number in the series: 2, 6, 12, 20, ?, 42

B. 32

Find the missing number in the series: 5, 11, 23, 47, ?, 191

A. 95