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.

10, 26, 74, 218, 654, 1946, 5834

View Answer

Correct choice: D

Explanation:

2nd term = (1st term) x 3 - 4 = 10 x 3 - 4 = 26.

3rd term = (2nd term) x 3 - 4 = 26 x 3 - 4 = 74.

4th term = (3th term) x 3 - 4 = 74 x 3 - 4 = 218.

5th term = (4th term) x 3 - 4 = 218 x 3 - 4 = 650.

∴ 5th term must be 650 instead of 654.

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