Question
Mathematics Question on Cartesian Product of Sets
A and B are non-singleton sets and n(A × B) = 35. If B ⊂ A then n(A)Cn(B) =
A
28
B
35
C
42
D
21
Answer
21
Explanation
Solution
The correct answer is () :
A and B are non-singleton sets and n(A × B) = 35. If B ⊂ A then n(A)Cn(B) =
28
35
42
21
21
The correct answer is () :