Odd Man Out and Series
- 52, 51, 48, 43, 34, 27, 16 ?
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Subtract 1, 3, 5, 7, 9, 11 from successive numbers. So, 34 is wrong.
Correct Option: B
Subtract 1, 3, 5, 7, 9, 11 from successive numbers. So, 34 is wrong.
- Find the wrong number in the series 3, 8, 15, 24, 34, 48, 63 ?
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The difference between consecutive terms are respectively. 5, 7, 9, 11 and 13. So, 34 is a wrong number.
Correct Option: C
The difference between consecutive terms are respectively. 5, 7, 9, 11 and 13. So, 34 is a wrong number.
- 40960, 10240, 2560, 640, 200, 40, 10 ?
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Go on dividing by 4 to get the next number. So, 200 is wrong.
Correct Option: C
Go on dividing by 4 to get the next number. So, 200 is wrong.
- Find out the wrong number in the series 5, 15, 30, 135, 405, 1215, 3645 ?
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Multiply each term by 3 to obtain the next term. Hence, 30 is a wrong number.
Correct Option: D
Multiply each term by 3 to obtain the next term. Hence, 30 is a wrong number.
- 1, 1, 2, 6, 24, 96, 720 ?
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Go on multiplying with 1, 2, 3, 4, 5, 6 to get the next number. So, 96 is wrong.
Correct Option: B
Go on multiplying with 1, 2, 3, 4, 5, 6 to get the next number. So, 96 is wrong.
