Home  / Verbal Reasoning  / Series Completion  / Number Series
Number Series
Alphabet Series
Letter Series

Find the missing number in the series: 5, 10, 20, 40, ?

Answer: C. 80
Each number in the series is multiplied by 2: 5x2=10, 10x2=20, 20x2=40, 40x2=80.
Posted in:  Number Series -  Series Completion -  Verbal Reasoning