Odd Man Out and Series problems
- 1. 331, 482, 551, 263, 383, 362, 284
Options- A. 263
- B. 383
- C. 331
- D. 551 Discuss
Correct Answer: 383
Explanation:
In each number except 383, the product of first and third digits is the middle one.
- 2. 835, 734, 642, 751, 853, 981, 532
Options- A. 751
- B. 853
- C. 981
- D. 532 Discuss
Correct Answer: 751
Explanation:
In each number except 751, the difference of third and first digit is the middle one.
- 3. 41, 43, 47, 53, 61, 71, 73, 81
Options- A. 61
- B. 71
- C. 73
- D. 81 Discuss
Correct Answer: 81
Explanation:
Each of the numbers except 81 is a prime number.
- 4. 3, 5, 7, 12, 17, 19
Options- A. 19
- B. 17
- C. 5
- D. 12 Discuss
Correct Answer: 12
Explanation:
Each of the numbers is a prime number except 12.
- 5. 582, 605, 588, 611, 634, 617, 600
Options- A. 634
- B. 611
- C. 605
- D. 600 Discuss
Correct Answer: 634
Explanation:
Alternatively 23 is added and 17 is subtracted from the terms. So, 634 is wrong.
- 6. 22, 33, 66, 99, 121, 279, 594
Options- A. 33
- B. 121
- C. 279
- D. 594 Discuss
Correct Answer: 279
Explanation:
Each of the number except 279 is a multiple of 11.
- 7. 8, 13, 21, 32, 47, 63, 83
Options- A. 47
- B. 63
- C. 32
- D. 83 Discuss
Correct Answer: 47
Explanation:
Go on adding 5, 8, 11, 14, 17, 20.
So, the number 47 is wrong and must be replaced by 46.
- 8. 1, 8, 27, 64, 124, 216, 343
Options- A. 8
- B. 27
- C. 64
- D. 124 Discuss
Correct Answer: 124
Explanation:
The numbers are 1
3, 2
3, 3
3, 4
3 etc. So, 124 is wrong; it must have been 5
3
i.e., 125.
- 9. 1, 2, 6, 15, 31, 56, 91
Options- A. 31
- B. 91
- C. 56
- D. 15 Discuss
Correct Answer: 91
Explanation:
1, 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.
- 10. 52, 51, 48, 43, 34, 27, 16
Options- A. 27
- B. 34
- C. 43
- D. 48 Discuss
Correct Answer: 34
Explanation:
Subtract 1, 3, 5, 7, 9, 11 from successive numbers.
So, 34 is wrong.
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