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- Question
Look at this series: 2, 1, (1/2), (1/4), ... What number should come next?
Options- A. (1/3)
- B. (1/8)
- C. (2/8)
- D. (1/16)
- Correct Answer
- (1/8)
ExplanationThis is a simple division series; each number is one-half of the previous number.In other terms to say, the number is divided by 2 successively to get the next result.
4/2 = 2 2/2 = 1 1/2 = 1/2 (1/2)/2 = 1/4 (1/4)/2 = 1/8 and so on.
Number Series problems
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- 1. Look at this series: 7, 10, 8, 11, 9, 12, ... What number should come next?
Options- A. 7
- B. 10
- C. 12
- D. 13 Discuss
Correct Answer: 10
Explanation:
This is a simple alternating addition and subtraction series. In the first pattern, 3 is added; in the second, 2 is subtracted.- 2. Look at this series: 36, 34, 30, 28, 24, ... What number should come next?
Options- A. 20
- B. 22
- C. 23
- D. 26 Discuss
Correct Answer: 22
Explanation:
This is an alternating number subtraction series. First, 2 is subtracted, then 4, then 2, and so on.- 3. Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next?
Options- A. 22
- B. 24
- C. 25
- D. 26 Discuss
Correct Answer: 25
Explanation:
In this simple alternating subtraction and addition series; 1 is subtracted, then 2 is added, and so on.- 4. Look at this series: 53, 53, 40, 40, 27, 27, ... What number should come next?
Options- A. 12
- B. 14
- C. 27
- D. 53 Discuss
Correct Answer: 14
Explanation:
In this series, each number is repeated, then 13 is subtracted to arrive at the next number.- 5. Look at this series: 21, 9, 21, 11, 21, 13, 21, ... What number should come next?
Options- A. 14
- B. 15
- C. 21
- D. 23 Discuss
Correct Answer: 15
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.
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