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Answer : 4 70 Explanation : Answer: D) 70 Explanation: Here the given series is 1, 3, 6, 11, 20, 37, ??, and the logic behind the series is1 x 2 1 = 33 x 2 0 = 66 x 2 (-1) = 1111 x 2 (-2) = 2020 x 2 (-3) = 3737 x 2 (-4) = 70 Hence, the next number in the given series is 70.

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