Exercise"We cannot solve our problems with the same thinking we used when we created them."
- Albert Einstein
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Find out the wrong number in the given sequence of numbers.
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| 1. |
582, 605, 588, 611, 634, 617, 600
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Answer: Option B
Explanation:
Alternatively 23 is added and 17 is subtracted from the terms. So, 634 is wrong.
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| 2. |
22, 33, 66, 99, 121, 279, 594
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Answer: Option C
Explanation:
Each of the number except 279 is a multiple of 11.
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| 3. |
8, 13, 21, 32, 47, 63, 83
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Answer: Option D
Explanation:
Go on adding 5, 8, 11, 14, 17, 20.
So, the number 47 is wrong and must be replaced by 46.
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| 4. |
1, 8, 27, 64, 124, 216, 343
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Answer: Option E
Explanation:
The numbers are 13, 23, 33, 43 etc. So, 124 is wrong; it must have been 53 i.e., 125.
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| 5. |
1, 2, 6, 15, 31, 56, 91
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Answer: Option B
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.
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