Lessons

General Aptitude
18.4 Odd Man Out and Series - Find Wrong No.

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Q.

Find out the wrong number in the series.
1, 3, 10, 21, 64, 129, 356, 777

View Answer

Correct choice: D

Explanation:

A x 2 + 1, B x 3 + 1, C x 2 + 1, D x 3 + 1 and so on.

So, 356 is wrong.

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