Question
Select the number that will replace the question mark
(?) in the following series. 35, 38, 43, 50, 61, 74, ?Solution
35 + 3 = 38 38 + 5 = 43 43 + 7 = 50 50 + 11 = 61 61 + 13 = 74 74 + 17 = 91
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