If set A has 10 elements, set B has 20 elements, 5 elements are common to both then find the number of elements in X Y.

If set A has 10 elements, set B has 20 elements, 5 elements are common

1.	If set A has 10 elements, set B has 20 elements, 5 elements are common to both then find the number of elements in X Y.
A.	10
B.	15
C.	20
D.	25
Answer» E.

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If set A has 10 elements, set B has 20 elements, 5 elements are common to both then find the number of elements in X Y.

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