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A confusing term in National Problem

Posted: Wed Feb 21, 2018 5:45 pm
by samiul_samin
Suppose $A$={$0,2,4,6,...,50$}.Find $\sum SEP (A) Max(S)$
Where $P$($A$) is the set of all subsets of $A$ and max ($S$) is the largest element of $S$.


CONFUSION
What is the meaning of the whole question?Can anyone clear it to me?