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

Complete the series: 3, 6, 11, 18, ?, 42.

Answer: B. 28
The differences between terms are increasing by 2: 3 to 6 (+3), 6 to 11 (+5), 11 to 18 (+7), so the next difference is +9, making it 18+9=27.
Posted in:  Number Series -  Series Completion -  Verbal Reasoning