Discussion :: Number Series
- Find out the wrong term: 1, 3, 10, 21, 64, 129, 356, 777
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Answer : Option D
Explanation :
The correct pattern is × 2 + 1, × 3 + 1, × 2 + 1, × 3 + 1,...........
So, 356 is wrong and must be replaced by (129 × 3 + 1) i.e., 388.
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