Question 14
Select the number that can replace the question mark (?) in the following series.
39, 50, 63, 80, ?, 122, 147, 176
Solution
The series follows pattern as,
39 + 11 = 50
50 + (11 + 2 = 13) = 63
63 + (13 + 4 = 17) = 80
80 + (17 + 2 = 19) = 99
99 + (19 + 4 = 23) = 122
122 + (23 + 2 = 25) = 147
147 + (25 + 4 = 29) = 176
$$\therefore$$ The correct answer is option C.
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