Class 7 Exam > Class 7 Questions > Direction: Find the odd man out.15, 16, 34, 1...
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Direction: Find the odd man out.
15, 16, 34, 105, 424, 2124, 12576
15, 16, 34, 105, 424, 2124, 12576
- a)16
- b)34
- c)105
- d)2124
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Direction: Find the odd man out.15, 16, 34, 105, 424, 2124, 12576a)16b...
2nd term = (1st term) x 1 + 1 = 15 x 1 + 1 = 16.
3rd term = (2nd term) x 2 + 2 = 16 x 2 + 2 = 34.
4th term = (3th term) x 3 + 3 = 34 x 3 + 3 = 105.
5th term = (4th term) x 4 + 4 = 105 x 4 + 4 = 424
6th term = (5th term) x 5 + 5 = 424 x 5 + 5 = 2125
6th term should 2125 instead of 2124.
Most Upvoted Answer
Direction: Find the odd man out.15, 16, 34, 105, 424, 2124, 12576a)16b...
Odd Man Out: Explanation
To find the odd man out in the given series, we need to analyze the pattern or rule followed by the numbers. Let's break down the given series and try to identify the pattern:
15, 16, 34, 105, 424, 2124
1. The first number, 15, can be obtained by multiplying 1 by 5 and then subtracting 5. (1 * 5 - 5 = 15)
2. The second number, 16, can be obtained by multiplying 2 by 8. (2 * 8 = 16)
3. The third number, 34, can be obtained by multiplying 3 by 11 and then subtracting 5. (3 * 11 - 5 = 34)
4. The fourth number, 105, can be obtained by multiplying 4 by 26 and then subtracting 5. (4 * 26 - 5 = 105)
5. The fifth number, 424, can be obtained by multiplying 5 by 85 and then subtracting 5. (5 * 85 - 5 = 424)
6. The sixth number, 2124, can be obtained by multiplying 6 by 355 and then subtracting 5. (6 * 355 - 5 = 2124)
From the pattern, we can observe that each number is obtained by multiplying a specific number by an increasing odd number and then subtracting 5.
Now, let's analyze the options given:
a) 16: This number can be obtained by multiplying 2 by 8, following the pattern. It is not the odd man out.
b) 34: This number can be obtained by multiplying 3 by 11 and then subtracting 5, following the pattern. It is not the odd man out.
c) 105: This number can be obtained by multiplying 4 by 26 and then subtracting 5, following the pattern. It is not the odd man out.
d) 2124: This number can be obtained by multiplying 6 by 355 and then subtracting 5, following the pattern. However, it is different from the other numbers in the series, which makes it the odd man out.
Therefore, the odd man out in the given series is option d) 2124.
To find the odd man out in the given series, we need to analyze the pattern or rule followed by the numbers. Let's break down the given series and try to identify the pattern:
15, 16, 34, 105, 424, 2124
1. The first number, 15, can be obtained by multiplying 1 by 5 and then subtracting 5. (1 * 5 - 5 = 15)
2. The second number, 16, can be obtained by multiplying 2 by 8. (2 * 8 = 16)
3. The third number, 34, can be obtained by multiplying 3 by 11 and then subtracting 5. (3 * 11 - 5 = 34)
4. The fourth number, 105, can be obtained by multiplying 4 by 26 and then subtracting 5. (4 * 26 - 5 = 105)
5. The fifth number, 424, can be obtained by multiplying 5 by 85 and then subtracting 5. (5 * 85 - 5 = 424)
6. The sixth number, 2124, can be obtained by multiplying 6 by 355 and then subtracting 5. (6 * 355 - 5 = 2124)
From the pattern, we can observe that each number is obtained by multiplying a specific number by an increasing odd number and then subtracting 5.
Now, let's analyze the options given:
a) 16: This number can be obtained by multiplying 2 by 8, following the pattern. It is not the odd man out.
b) 34: This number can be obtained by multiplying 3 by 11 and then subtracting 5, following the pattern. It is not the odd man out.
c) 105: This number can be obtained by multiplying 4 by 26 and then subtracting 5, following the pattern. It is not the odd man out.
d) 2124: This number can be obtained by multiplying 6 by 355 and then subtracting 5, following the pattern. However, it is different from the other numbers in the series, which makes it the odd man out.
Therefore, the odd man out in the given series is option d) 2124.
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Direction: Find the odd man out.15, 16, 34, 105, 424, 2124, 12576a)16b)34c)105d)2124Correct answer is option 'D'. Can you explain this answer?
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