Question

Which of the following sets are disjoint? \begin{array}{l} A=\{\text { Multiples of } 3\} \\ B=\{\text { Multiples of } 5\} \\ C=\{\text { Multiples of } 7\} \end{array}

• A. $A$ and $B$
• B. $B$ and $C$
• C. $A$ and $C$
• D. None of these

Answer 1

Answer: (D)

Disjoint sets have no elements in common.