What comes next in the series: 1, 2, 4, 7, 11?
Q1. What comes next in the series: 1, 2, 4, 7, 11?
Answer: 16
Explanation: The pattern of the series is obtained by adding 1, 2, 3, 4, ... to the previous term. So, the differences are +1, +2, +3, +4, +5. Hence, the next number is 11 + 5 = 16.