Find out the wrong term: 1, 3, 10, 21, 64, 129, 356, 777

by AdminX

Find out the wrong term: 1, 3, 10, 21, 64, 129, 356, 777

A. 21
B. 129
C. 10
D. 356

Answer & Solution

Answer: Option D
Solution:

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.

Find out the wrong term: 1, 3, 10, 21, 64, 129, 356, 777

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