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Directions (Q.21-25): In the following number series only one number is wrong. Find out wrong number.
71, 90, 128, 185, 261, 365
- a)365
- b)128
- c)185
- d)90
- e)261
Correct answer is option 'A'. Can you explain this answer?
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Directions (Q.21-25): In the following number series only one number i...
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Directions (Q.21-25): In the following number series only one number i...
Understanding the Number Series
The series provided is: 71, 90, 128, 185, 261, 365. To identify the wrong number, we can analyze the differences between consecutive numbers.
Calculating Differences
- 90 - 71 = 19
- 128 - 90 = 38
- 185 - 128 = 57
- 261 - 185 = 76
- 365 - 261 = 104
Identifying the Pattern
Now, let's look at the differences obtained:
- 19
- 38
- 57
- 76
- 104
The differences themselves seem to follow a pattern. The difference between these differences is:
- 38 - 19 = 19
- 57 - 38 = 19
- 76 - 57 = 19
- 104 - 76 = 28
Here, the first three differences increase consistently by 19. However, the last difference (104 - 76 = 28) deviates from this pattern, indicating a break in the sequence.
Finding the Correct Number
If we assume that the correct sequence of differences should continue increasing by 19, the next difference after 76 should be:
- 76 + 19 = 95
Thus, the number that should follow 261 in the series would be:
- 261 + 95 = 356
Conclusion
Since 365 is present in the series instead of 356, it becomes evident that the wrong number in the series is **365**. Therefore, the correct answer is option **A: 365**.
The series provided is: 71, 90, 128, 185, 261, 365. To identify the wrong number, we can analyze the differences between consecutive numbers.
Calculating Differences
- 90 - 71 = 19
- 128 - 90 = 38
- 185 - 128 = 57
- 261 - 185 = 76
- 365 - 261 = 104
Identifying the Pattern
Now, let's look at the differences obtained:
- 19
- 38
- 57
- 76
- 104
The differences themselves seem to follow a pattern. The difference between these differences is:
- 38 - 19 = 19
- 57 - 38 = 19
- 76 - 57 = 19
- 104 - 76 = 28
Here, the first three differences increase consistently by 19. However, the last difference (104 - 76 = 28) deviates from this pattern, indicating a break in the sequence.
Finding the Correct Number
If we assume that the correct sequence of differences should continue increasing by 19, the next difference after 76 should be:
- 76 + 19 = 95
Thus, the number that should follow 261 in the series would be:
- 261 + 95 = 356
Conclusion
Since 365 is present in the series instead of 356, it becomes evident that the wrong number in the series is **365**. Therefore, the correct answer is option **A: 365**.
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Directions (Q.21-25): In the following number series only one number is wrong. Find out wrong number.71, 90, 128, 185, 261, 365a)365b)128c)185d)90e)261Correct answer is option 'A'. Can you explain this answer?
Question Description
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Directions (Q.21-25): In the following number series only one number is wrong. Find out wrong number.71, 90, 128, 185, 261, 365a)365b)128c)185d)90e)261Correct answer is option 'A'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about Directions (Q.21-25): In the following number series only one number is wrong. Find out wrong number.71, 90, 128, 185, 261, 365a)365b)128c)185d)90e)261Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions (Q.21-25): In the following number series only one number is wrong. Find out wrong number.71, 90, 128, 185, 261, 365a)365b)128c)185d)90e)261Correct answer is option 'A'. Can you explain this answer?.
Solutions for Directions (Q.21-25): In the following number series only one number is wrong. Find out wrong number.71, 90, 128, 185, 261, 365a)365b)128c)185d)90e)261Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Quant.
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