Question
5, 18, 39, 68, 105,
? What will come in place of the question mark (?) in the following series?Solution
ATQ, 22 + 1 = 5 42 + 2 = 18 62 + 3 = 39 82 + 4 = 68 102 + 5 = 105 122 + 6 = 150
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