Discussion
Home ‣ Aptitude ‣ Odd Man Out and Series Comments
- Question
Find out the wrong number in the given sequence of numbers. 1, 2, 6, 15, 31, 56, 91
Options- A. 31
- B. 91
- C. 56
- D. 15
- Correct Answer
- 91
Explanation1, 1 + 12 = 2, 2 + 22 = 6, 6 + 32 = 15, 15 + 42 = 31, 31 + 52 = 56, 56 + 62 = 92
Last number of given series must be 92 not 91.
- 1. Insert the missing number. 2, 6, 12, 20, 30, 42, 56, (....)
Options- A. 61
- B. 64
- C. 72
- D. 70 Discuss
- 2. Find the odd man out. 6, 9, 15, 21, 24, 28, 30
Options- A. 28
- B. 21
- C. 24
- D. 30 Discuss
- 3. Insert the missing number. 3, 7, 6, 5, 9, 3, 12, 1, 15, (....)
Options- A. 18
- B. 13
- C. -1
- D. 3 Discuss
- 4. Insert the missing number. 2, 4, 12, 48, 240, (....)
Options- A. 960
- B. 1440
- C. 1080
- D. 1920 Discuss
- 5. Find the odd man out. 2, 5, 10, 17, 26, 37, 50, 64
Options- A. 50
- B. 37
- C. 26
- D. 64 Discuss
- 6. Find the odd man out. 331, 482, 551, 263, 383, 362, 284
Options- A. 263
- B. 383
- C. 331
- D. 551 Discuss
- 7. Find out the wrong number in the given sequence of numbers. 582, 605, 588, 611, 634, 617, 600
Options- A. 634
- B. 611
- C. 605
- D. 600 Discuss
- 8. Find the odd man out. 253, 136, 352, 324, 631, 244
Options- A. 324
- B. 136
- C. 352
- D. 631 Discuss
- 9. Find out the wrong number in the given sequence of numbers. 36, 54, 18, 27, 9, 18.5, 4.5
Options- A. 4.5
- B. 18.5
- C. 54
- D. 18 Discuss
- 10. Find out the wrong number in the given sequence of numbers. 52, 51, 48, 43, 34, 27, 16
Options- A. 27
- B. 34
- C. 43
- D. 48 Discuss
Odd Man Out and Series problems
Search Results
Correct Answer: 72
Explanation:
The pattern is 1 x 2, 2 x 3, 3 x 4, 4 x 5, 5 x 6, 6 x 7, 7 x 8.
So, the next number is 8 x 9 = 72.
Correct Answer: 28
Explanation:
Each of the numbers except 28, is a multiple of 3.
Correct Answer: -1
Explanation:
There are two series, beginning respectively with 3 and 7. In one 3 is added and in another 2 is subtracted.
The next number is 1 - 2 = -1.
Correct Answer: 1440
Explanation:
Go on multiplying the given numbers by 2, 3, 4, 5, 6.
So, the correct next number is 1440.
Correct Answer: 64
Explanation:
(1*1)+1 , (2*2)+1 , (3*3)+1 , (4*4)+1 , (5*5)+1 , (6*6)+1 , (7*7)+1 , (8*8)+1
But, 64 is out of pattern.
Correct Answer: 383
Explanation:
In each number except 383, the product of first and third digits is the middle one.
Correct Answer: 634
Explanation:
Alternatively 23 is added and 17 is subtracted from the terms. So, 634 is wrong.
Correct Answer: 324
Explanation:
The Sum of the digits in each number, Except 324 is 10.
Correct Answer: 18.5
Explanation:
The terms are alternatively multiplied by 1.5 and divided by 3. However, 18.5 does not satisfy it.
Correct Answer: 34
Explanation:
Subtract 1, 3, 5, 7, 9, 11 from successive numbers.
So, 34 is wrong.
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