Let 
. Then the number of elements in the set 
and the sum of all the elements of 
is not a multiple of 3 
is
Text Solution
Verified by Experts80
(80) 3n type 
type 
type 
number of subset of 
containing one element
which are not divisible by 
number of subset of 
containing two numbers
whose some is not divisible by 3
number of subsets containing 3 elements whose sum is not divisible by 3
number of subsets containing 4 elements whose sum is not divisible by 3
.
number of subsets of 
containing 5 elements
whose sum is not divisible by 3 .
number of subsets of 
containing 6 elements
whose sum is not divisible by 
Total subsets of Set A whose sum of digits is
not divisible by 
.
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