Identify the missing number:
3, 6, 11, 18, _____
Show answer & explanation
Correct answer: C
Explanation
3, 6, 11, 18, ?
the difference:
6 − 3 = 3
11 − 6 = 5
18 − 11 = 7
The differences are 3, 5, and 7, respectively, meaning consecutive odd numbers.
The next difference will be 9.
18 + 9 = 27
Correct answer: 27