Number Series - Type 1 (2)
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- Number Series - Type 1
| 9. | Look at this series: 1.5, 2.3, 3.1, 3.9, ... What number should come next? |
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Answer: Option C Explanation: In this simple addition series, each number increases by 0.8. |
| 10. | Look at this series: 31, 29, 24, 22, 17, ... What number should come next? |
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Answer: Option A Explanation: This is a simple alternating subtraction series, which subtracts 2, then 5. |
| 11. | Look at this series: 8, 22, 8, 28, 8, ... What number should come next? |
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Answer: Option D Explanation: This is a simple addition series with a random number, 8, interpolated as every other number. In the series, 6 is added to each number except 8, to arrive at the next number. |
| 12. | Look at this series: 3, 4, 7, 8, 11, 12, ... What number should come next? |
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Answer: Option D Explanation: This alternating addition series begins with 3; then 1 is added to give 4; then 3 is added to give 7; then 1 is added, and so on. |
| 13. | Look at this series: 58, 52, 46, 40, 34, ... What number should come next? |
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Answer: Option B Explanation: This is a simple subtraction series. Each number is 6 less than the previous number. |
| 14. | Look at this series: 21, 9, 21, 11, 21, 13, 21, ... What number should come next? |
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Answer: Option B Explanation: In this alternating repetition series, the random number 21 is interpolated every other number into an otherwise simple addition series that increases by 2, beginning with the number 9. |
| 15. | Look at this series: 53, 53, 40, 40, 27, 27, ... What number should come next? |
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Answer: Option B Explanation: In this series, each number is repeated, then 13 is subtracted to arrive at the next number. |
| 16. | Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next? |
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Answer: Option C Explanation: In this simple alternating subtraction and addition series; 1 is subtracted, then 2 is added, and so on. |