Correct option is D
Pattern used =
21 + 22 +23 = 14
31 + 32 +33 = 39
41 + 42 +43 = 84
51 + 52 +53 = 155
61 + 62 +63 = 258 ≠ 260
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Question
Find the wrong number in the given series from the given alternatives-14, 39, 84, 155, 260
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