Quant Exam > Quant Questions > 2, 2, 7, ?, 87,342a)21b)26c)23d)24e)22Correct...
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2, 2, 7, ?, 87, 342
- a)21
- b)26
- c)23
- d)24
- e)22
Correct answer is option 'E'. Can you explain this answer?
Verified Answer
2, 2, 7, ?, 87,342a)21b)26c)23d)24e)22Correct answer is option 'E'. Ca...
2 + 1² – 1 = 2
2 + 2² + 1= 7
7 + 4² – 1= 22
2 + 2² + 1= 7
7 + 4² – 1= 22
Most Upvoted Answer
2, 2, 7, ?, 87,342a)21b)26c)23d)24e)22Correct answer is option 'E'. Ca...
The given sequence is 2, 2, 7, ?, 87, 342. We need to find the missing number in the sequence.
Observation:
- The numbers in the sequence are increasing, but not in a regular pattern.
- There are no obvious mathematical operations or patterns that can be applied to obtain the missing number.
Strategy:
Since there is no clear pattern, we will have to analyze the given sequence more closely and look for any possible patterns or relationships between the numbers.
Analysis:
- The first two numbers are the same, which suggests that they might be the starting point or a base for the sequence.
- The third number is 7, which is significantly higher than the first two numbers.
- The last number is 342, which is much larger than the other numbers in the sequence.
- The missing number is likely to be between 7 and 342.
Possible patterns:
- One possible pattern is that the numbers are increasing by a fixed difference or ratio. However, this pattern does not seem to hold true for the given sequence.
- Another possible pattern is that the numbers are following a specific rule or sequence. Let's try to find a pattern based on the given numbers.
Pattern based on the given numbers:
- The first number is 2, and the second number is also 2. This suggests that the sequence might be starting with two identical numbers.
- The third number is 7, which is obtained by adding 5 to the previous number (2 + 5 = 7).
- The fourth number can be obtained by adding 5 to the previous number (7 + 5 = 12). However, 12 is not given in the options.
- Another possibility is that the numbers are increasing by a different fixed difference or ratio after the third number.
Conclusion:
Based on the given numbers and possible patterns, it is difficult to determine the exact missing number. However, we can make an educated guess by looking at the numbers in the sequence.
Guess:
Looking at the sequence, it seems that the numbers are increasing at an irregular rate after the third number. Therefore, the missing number is likely to be a number that fits this pattern.
Answer:
Among the given options (21, 26, 23, 24, 22), option 'E' (22) seems to be the most reasonable guess based on the pattern observed in the sequence. However, it is important to note that this is just an educated guess and there may be other patterns or relationships that could lead to a different answer.
Observation:
- The numbers in the sequence are increasing, but not in a regular pattern.
- There are no obvious mathematical operations or patterns that can be applied to obtain the missing number.
Strategy:
Since there is no clear pattern, we will have to analyze the given sequence more closely and look for any possible patterns or relationships between the numbers.
Analysis:
- The first two numbers are the same, which suggests that they might be the starting point or a base for the sequence.
- The third number is 7, which is significantly higher than the first two numbers.
- The last number is 342, which is much larger than the other numbers in the sequence.
- The missing number is likely to be between 7 and 342.
Possible patterns:
- One possible pattern is that the numbers are increasing by a fixed difference or ratio. However, this pattern does not seem to hold true for the given sequence.
- Another possible pattern is that the numbers are following a specific rule or sequence. Let's try to find a pattern based on the given numbers.
Pattern based on the given numbers:
- The first number is 2, and the second number is also 2. This suggests that the sequence might be starting with two identical numbers.
- The third number is 7, which is obtained by adding 5 to the previous number (2 + 5 = 7).
- The fourth number can be obtained by adding 5 to the previous number (7 + 5 = 12). However, 12 is not given in the options.
- Another possibility is that the numbers are increasing by a different fixed difference or ratio after the third number.
Conclusion:
Based on the given numbers and possible patterns, it is difficult to determine the exact missing number. However, we can make an educated guess by looking at the numbers in the sequence.
Guess:
Looking at the sequence, it seems that the numbers are increasing at an irregular rate after the third number. Therefore, the missing number is likely to be a number that fits this pattern.
Answer:
Among the given options (21, 26, 23, 24, 22), option 'E' (22) seems to be the most reasonable guess based on the pattern observed in the sequence. However, it is important to note that this is just an educated guess and there may be other patterns or relationships that could lead to a different answer.
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Community Answer
2, 2, 7, ?, 87,342a)21b)26c)23d)24e)22Correct answer is option 'E'. Ca...
2 + 1² – 1 = 2
2 + 2² + 1= 7
7 + 4² – 1= 22
2 + 2² + 1= 7
7 + 4² – 1= 22
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