kwizNET Subscribers, please login to turn off the Ads!
Email us to get an instant 20% discount on highly effective K-12 Math & English kwizNET Programs!

Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 8 - Mathematics
4.12 Set and Its Complement

The complement of a set A, is the set of all elements in the universal set U but not in A, and is denoted by Ac and read as "A complement".

Example:
If U = {1,2,3,5,7} and A = {1,2,3} Then find Ac.

Solution:
Ac consists of all the elements that are in U not in A. They are 5 and 7.
Therefore, Ac = U - A
Ac = {1,2,3,5,7} - {1,2,3}
= {5,7}.


Directions: Solve the following problems. Also write at least five examples of your own.
Q 1: If U = {0,1,2,3,4} and A = {1,2,3} Then find Ac.
{0,4}
{0,1}
None
{0,1,2,3}

Q 2: If U = {5,10,15,20} and A = {5} Then find Ac.
{10,15,20}
{10,20}
{}
None of these

Q 3: If U = {2,3,5,7,11} and A = {1,3,5,7} Then find Ac.
{2,11}
{1,2,3,5,11}
{2,7,11}
{2,3,5,7,11}

Q 4: If U = {3,6,9} and A = {3,6,9} Then find Ac.
{3,9}
{3,6,9}
{}
None of these

Q 5: If U = {3,6,9} and A = {2,4,6} Then find Ac.
{3,9}
{2,4,6,9}
None of these
{3,6,9}

Q 6: If U = {2,4,6,8} and A = {4,8,12,16} Then find Ac.
{2,4,6,8}
{2,4,6}
{2,6,8,16}
{2,6}

Q 7: If U = {7,14,21,28} and A = {14,28} Then find Ac.
{7,21}
{7,14,21,28}
{7,21,28}
{7,14,21}

Q 8: If U = {4,5,6,7} and A = {9,10,11} Then find Ac.
{4,5,6}
None of these
{4,6}
{4,5,6,7}

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


Subscription to kwizNET Learning System offers the following benefits:

  • Unrestricted access to grade appropriate lessons, quizzes, & printable worksheets
  • Instant scoring of online quizzes
  • Progress tracking and award certificates to keep your student motivated
  • Unlimited practice with auto-generated 'WIZ MATH' quizzes
  • Child-friendly website with no advertisements
  • Choice of Math, English, Science, & Social Studies Curriculums
  • Excellent value for K-12 and ACT, SAT, & TOEFL Test Preparation
  • Get discount offers by sending an email to discounts@kwiznet.com

Quiz Timer