Question
6, 11, 18, 27, 38,
? In each of the following questions, a letter-number series is given with one or more terms missing as shown by (?). Choose the missing term out of the given alternatives.Solution
6 + 5 = 11 11 + 7 = 18 18 + 9 = 27 27 + 11 = 38 38 + 13 = 51
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