A and B are not singleton sets. n(A x B) = 21. If A C B then n(B) = ..........
(A) 3
(B) 7
(C) 21
(D) I
Answers
Answered by
0
Answer:
7
because 21 has two factor 7 &3
given A is Subset of B
.
.
It means n(B)>n(A)
Answered by
0
Answer:
Step-by-step explanation:option c
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