Choose the missing number: 3, 5, 11, 21, 35, ?
Show answer & explanation
Correct answer: D
Explanation
5 − 3 = 2
11 − 5 = 6
21 − 11 = 10
35 − 21 = 14
Series of differences:
2, 6, 10, 14
Here, each term is increased by 4.
Next difference:
14 + 4 = 18
Hence, the next term:
35 + 18 = 53
Correct Answer:-: (d) 53