A series is 1, 2, 4, 7, ?. What comes next?
Question 1
Q1. A series is 1, 2, 4, 7, ?. What comes next?
Answer: 11
Explanation: The difference between consecutive terms is increasing by 1, 2, 3, ... . So, the next difference should be 4, hence 7 + 4 = 11.