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Aptitude
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Verbal Reasoning
Computer Science
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Odd Man Out and Series
1, 2, 6, 15, 31, 56, 91
31
91
56
15
Show Answer
Correct Answer:
91
Explanation:
1, 1 + 1
2
= 2, 2 + 2
2
= 6, 6 + 3
2
= 15, 15 + 4
2
= 31, 31 + 5
2
= 56, 56 + 6
2
= 92
Last number of given series must be 92 not 91.
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