Question
168, 178, ?, 273, 400, 618,
963 What will come in place of the question mark (?) in the following series?Solution
ATQ, 168 + (23 + 2) = 178 178 + (33 + 2) = 207 207 + (43 + 2) = 273 273 + (53 + 2) = 400 400 + (63 + 2) = 618 618 + (73 + 2) = 963
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