Answer : 1 244 Explanation : Answer: A) 244 Explanation: The given number series 22, 26, 42, 78, 142, 244 follows a pattern that,2222   22 = 22   4 = 2626   42 = 26   16 = 4242   62 = 42   36 = 7878   82 = 78   64 = 142142   102 = 142   100 = 242  Hence, the odd one in the given number series is 244.

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