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Odd Man Out and Series
3, 7, 15, 39, 63, 127, 255, 511
7
15
39
63
127
Correct Answer:
39
Explanation:
Go on multiplying 2 and adding 1 to get the next number.
So, 39 is wrong.
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Odd Man Out and Series
64, 71, 80, 91, 104, 119, 135, 155
15, 16, 34, 105, 424, 2124, 12756
10, 26, 74, 218, 654, 1946, 5834
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3, 7, 15, 27, 63, 127, 255
835, 734, 642, 751, 853, 981, 532?
8, 27, 64, 100, 125, 216, 343?
1, 4, 9, 16, 20, 36, 49?
10, 25, 45, 54, 60, 75, 80?
16, 25, 36, 72, 144, 196, 225?
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