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In the following number series only one number is wrong. Find out the wrong number.
1050 420 178 67.2 26.88 10.752
- a)1050
- b)178
- c)26.88
- d)10.752
- e)None of the above
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
In the following number series only one number is wrong. Find out the...
Understanding the Number Series
In the given number series: 1050, 420, 178, 67.2, 26.88, 10.752, we need to identify the incorrect number. Let's analyze the pattern.
Identifying the Pattern
1. From 1050 to 420:
- Calculation: 1050 ÷ 2.5 = 420
2. From 420 to 178:
- Calculation: 420 ÷ 2.36 = 178 (approximately)
3. From 178 to 67.2:
- Calculation: 178 ÷ 2.64 = 67.2 (approximately)
4. From 67.2 to 26.88:
- Calculation: 67.2 ÷ 2.5 = 26.88
5. From 26.88 to 10.752:
- Calculation: 26.88 ÷ 2.5 = 10.752
Identifying the Incorrect Number
The division factors are not consistent throughout the series:
- The transition from 420 to 178 uses a divisor of approximately 2.36, which deviates from the consistent pattern of dividing by either 2.5 or 2.64.
- The expected number after 420, following the pattern, should be around 168 (420 ÷ 2.5).
Conclusion
Hence, the number 178 does not fit the established pattern in the series, making it the incorrect number.
Thus, the correct answer is option B: 178.
In the given number series: 1050, 420, 178, 67.2, 26.88, 10.752, we need to identify the incorrect number. Let's analyze the pattern.
Identifying the Pattern
1. From 1050 to 420:
- Calculation: 1050 ÷ 2.5 = 420
2. From 420 to 178:
- Calculation: 420 ÷ 2.36 = 178 (approximately)
3. From 178 to 67.2:
- Calculation: 178 ÷ 2.64 = 67.2 (approximately)
4. From 67.2 to 26.88:
- Calculation: 67.2 ÷ 2.5 = 26.88
5. From 26.88 to 10.752:
- Calculation: 26.88 ÷ 2.5 = 10.752
Identifying the Incorrect Number
The division factors are not consistent throughout the series:
- The transition from 420 to 178 uses a divisor of approximately 2.36, which deviates from the consistent pattern of dividing by either 2.5 or 2.64.
- The expected number after 420, following the pattern, should be around 168 (420 ÷ 2.5).
Conclusion
Hence, the number 178 does not fit the established pattern in the series, making it the incorrect number.
Thus, the correct answer is option B: 178.
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Community Answer
In the following number series only one number is wrong. Find out the...
1050 x (2/5) = 420
420 x (2/5) = 168
168 x (2/5) = 67.2
67.2 x (2/5) = 26.88
26.88 x (2/5) = 10.752
Hence, 178 is the wrong number in the given series
Option B
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