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Odd Man Out and Series

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  1. 1, 5, 14, 30, 50, 55, 91 ?
    1. 5
    2. 50
    3. 55
    4. 91
Correct Option: B

The pattern is
12 ,
12 + 22,
12 + 22 + 32,
12 + 22 + 32 + 42,
12 + 22 + 32 + 42 + 52,
12 + 22 + 32 + 42 + 52 + 62 .
But 50 is not of this pattern.


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