two consecutive integers

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two consecutive integers

by j_shreyans » Tue Sep 30, 2014 9:39 am
A list contains twenty integers, not necessarily distinct. Does the list contain at least two consecutive integers?

(1) If any single value in the list is increased by 1, the number of different values in the list does not change.

(2) At least one value occurs more than once in the list.

OAC

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by j_shreyans » Wed Oct 01, 2014 2:00 am
Guys ,

Really need a help..........