Question

Suppose Set B contains 60 elements and the total number elements in either Set A or Set B is 82. If the Sets A and B have 12 elements in common, how many elements are contained in set A?

Answer 1

• 34 elements

Explanation:

Set B = 60 elements

Set A = x elements

A∩B = 12

A∪B = 82

x = (82+12 - 60) = 34 elements