Find out the wrong number in the series.
7, 8, 18, 57, 228, 1165, 6996
Let the given numbers be A, B, C, D, E, F, G.
Then, A, A x 1 + 1, B x 2 + 2, C x 3 + 3, D x 4 + 4, E x 5 + 5, F x 6 + 6 are the required numbers.
Clearly, 228 is wrong.
Find the odd man out?
396, 462, 572, 427, 671, 264.
Here the given series is 396, 462, 572, 427, 671, 264.
In all the terms, the middle digit is the sum of first and third digit except 427.
So the Odd number in the given series is 427.
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