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Verbal Reasoning
Computer Science
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Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
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Odd Man Out and Series
3, 7, 15, 39, 63, 127, 255, 511
7
15
39
63
127
Show Answer
Correct Answer:
39
Explanation:
Go on multiplying 2 and adding 1 to get the next number.
So, 39 is wrong.
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