Identify the number that does not belong to the following series. 0, 7, 26, 2, 9, 27, 4, 11, 30
27
Split the series into groups of three: (0, 7, 26), (2, 9, 27), (4, 11, 30).
First terms: 0, 2, 4 (increase by 2)
Second terms: 7, 9, 11 (increase by 2)
Third terms should also increase by 2: 26, 28, 30
So the third term of the middle group should be 28, but 27 is given.
Hence, 27.
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Important Questions from Number Series
What will come in place of question mark (?) in the following number series?
2, 5, 11, 23, 44, 77, ?
What will come in place of question mark (?) in the following number series?
31, 32, 36, ?, 61, 86
What will come in the place of question mark (?) in the following number series?
3, 6, 18, ?, 630, 6930
What should come in place of the question mark ‘?’ in the following number series?
60, 40, 50, ?, 180, 460
A series is given with one term wrong. Select that wrong term from the given alternatives.
J12, M24, P48, S96, U192
