Question
156, 237, 286, 311, 320,
? What will come in place of the question mark (?) in the following series?Solution
ATQ, 156 + 92 = 237 237 + 72 = 286 286 + 52 = 311 311 + 32 = 320 320 + 12 = 321 The given series follows the following pattern: (Number + square of odd numbers in decreasing order starting from 9)
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