Which number will replace the question mark (?) in the following series?
3, 5, 9, 15, 23, 33, 45, ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 59.
3, 5, 9, 15, 23, 33, 45, ?
3 + 2 = 5
5 + 4 = 9
9 + 6 = 15
15 + 8 = 23
23 + 10 = 33
33 + 12 = 45
Hence, next term
45 + 14 = 59
Hence, the correct answer is 59.