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- Odd Man Out and Series
21.
19, 26, 33, 46, 59, 74, 91
- A.26
- C.46
- E.74
- B.33
- D.59
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| Go on adding 7, 9, 11, 13, 15, 17 respectively to obtain the next number. |
| So, 33 is wrong. |
22.
15, 16, 34, 105, 424, 2124, 12576
- A.16
- C.105
- E.2124
- B.34
- D.424
- Answer & Explanation
- Report
Answer : [E]
Explanation :
Explanation :
| 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 = (3rd 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 = 425 x 5 + 5 = 2125. | |||||
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23.
3, 8, 18, 46, 100, 210, 432
- A.8
- C.46
- E.210
- B.18
- D.100
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| 2nd term = (1st term x 2 + 2) = 3 x 2 + 2 = 8; | |||||
| 3rd term = (2nd term x 2 + 4) = 8 x 2 + 4 = 20; | |||||
| 4th term = (3rd term x 2 + 6) = 20 x 2 + 6 = 46; | |||||
| 5th term = (4th term x 2 + 8) = 46 x 2 + 8 = 100 and so on. | |||||
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24.
8, 27, 64, 100, 125, 216, 343
- A.27
- C.125
- B.100
- D.343
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| The pattern is 23, 33, 43, 53, 63, 73. But, 100 is not a perfect cube. |
25.
22, 33, 66, 99, 121, 279, 594
- A.33
- C.279
- B.121
- D.594
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
| Each number except 279 is a multiple of 11. |
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