Six Elements In Between
Difficulty: Medium · Topics: Discrete Mathematics, Sets, Subsets
A=\a,b,c\, C=\a,b,c,1,2,3,4,5\
In how many of the six-element sets B satisfying Asubset Bsubset C is 1 absent or 2 absent?
Difficulty: Medium · Topics: Discrete Mathematics, Sets, Subsets
A=\a,b,c\, C=\a,b,c,1,2,3,4,5\
In how many of the six-element sets B satisfying Asubset Bsubset C is 1 absent or 2 absent?