11. A − C

A. { 4, 6, 8, 10}

B. { 5, 9, 11, 12}
C. ∅

D. { 4,10 }

12. B ∪ C’

A. { 4, 5, 6, 7, 8, 9, 10, 13}

B. { 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 }
C. { 4, 5, 7, 8, 9, 10,13 }

D. { 4, 7, 9, 11, 13 }


13. ( A ∩ B ) ‘

A. { 4, 5, 6, 7, 9, 11, 12, 13 }

B. { 4, 5, 6, 7, 8, 9, 11, 12, 13}
C. { 4, 5, 6, 7, 9, 10, 11, 12, 13}
D. { 9, 10, 11, 12, 13}


14. C − B

A. { 5, 8, 9 }
B. { 6 , 11, 12 }
C. { 5, 6, 8, 9, 10, 11, 12}

D. { 5, ,9, 11, 12 }


15. ( B ∪ C ) ’

A. { 4, 7, 13 }

B. { 5, 6, 8, 9, 10, 11, 12}
C. { 4, 7, 11, 13}

D. {5, 7, 11, 13 }
​