Answer : 2 121 Explanation : Answer: B) 121 Explanation: Given number series is 61, 66, 83, 121, 185Here the given series follows a pattern that, 6161   22   1 = 6666   42   1 = 8383   62   1 = 120 (not 121)120   82   1 = 185  Hence, the odd man in the given series is 121.

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