Verbal Reasoning →Series Completion → Number Series→Question : 31

Find the missing term in the following series:
1, 2, 6, 7, 21, 22, 66, 67, ?
[A]70
[B]134
[C]201
[D]301

201
In the above question, the pattern is +1, x3, +1, x3, +1,…… So, missing term =67×3 = 201

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