If A has 32 elements, B has 42 elements and AUB has 62 elements then number of elements in A and B is:

If A has 32 elements, B has 42 elements and AUB has 62 elements then number of elements in A and B is:

A 10

B 12

C 15

D 20

Solution

Correct Answer: Option B

here, A+B=32+62=74 A and B are common=(74-62)=12 elements