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Tricky Problems on Odd Man Out
Odd Man Out - Aptitude
11.6, 13, 18, 25, 30, 37, 40
x
Option: B
Explanation
Ans:40
The difference between two successive terms from the beginning are 7, 5, 7, 5, 7, 5.
but 40 - 37 = 3, so 40 does not follow the pattern.
12.56, 72, 90, 110, 132, 150
x
Option: A
Explanation
Ans:150
Pattern is: 7 * 8, 8 * 9, 9 * 10, 10 * 11, 11 * 12, 12 * 13
12 * 13 = 156, so 150 is wrong.
13.Find the Missing Number 4, -8, 16, -32, 64, __
x
Option: A
Explanation
Ans: -128
each number is the preceding number multiplied by -2
i.e) 64 * (-2) = -128
14.Find the Missing Number 5, 10, 13, 26, 29, 58, 61, __
x
Option: B
Explanation
Ans: 122
Numbers are alternatively multiplied by 2 and increased by 3
i.e) 61 * 2 = 122.
15.Find the Missing Number 15, 31, 63, 127, 255, __
x
Option: C
Explanation
Ans:511
each number is doubled and then added with 1
i.e) (255 * 2) + 1 = 511
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