Select the number from among the given options that can replace the question mark
(?) in the following series.
34, 37, 42, 49, 60, 73, 90,?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 109.
The logic used here is:
34, 37, 42, 49, 60, 73, 90,?
34 + 3 = 37
37 + 5 = 42
42 + 7 = 49
49 + 11 = 60
60 + 13 = 73
73 + 17 = 90
90 + 19 = 109
Hence, option 1 is the correct answer.