Subsets Sum Divisible by 3 (Jee Mains) | ExamDuo
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Combinations
Medium
Subsets Sum Divisible by 3
Let
S
=
{
1
,
2
,
3
,
5
,
7
,
10
,
11
}
. The number of nonempty subsets of
S
that have the sum of all elements a multiple of 3 , is _______.
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