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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 8 - Mathematics
4.43 Difference of Two Sets - II

If A and B are two sets then B - A = {x/x B and x A}.

Example:
A = {a,b,c,d,e,f} and B = {a,b,d,e,g,h} find B - A.

solution:
B - A = {a,b,d,e,g,h} - {a,b,c,d,e,f}
Therefore, B - A = {g,h}


Directions: Solve the following problems. Also write at least five examples of your own.
Q 1: A = {2,4,6} and B = {3,5,7} then find B - A.
{2,3,5,7}
{}
{3,5,7}
{2}

Q 2: A = {7,8,9} and B = {8,9,10} then find B - A.
{10}
NOne of these
{7}
{}

Q 3: A = {2,4,6} and B = {4,6,8} then find B - A.
{}
{8}
{4,6,8}
{2,4,6,8}

Q 4: A = {5,10,15,20} and B = {10,20,30} then find B - A.
{}
{5,10,15}
{5,15}
{30}

Q 5: A = {1,2,3} and B = {3,6,9} then find B - A.
{6,9}
{3,6,9}
None of these
{}

Q 6: A = {10,20,30} and B = {20,40,60} then find B - A.
{40,60}
{10,20,30}
{10}
{}

Q 7: A = {100,200,300,400} and B = {200,400,600} then find B - A.
{100}
None of these
{600}
{100,600}

Q 8: A = {2,3,5,7} and B = {3,5,7} then find B - A.
{}
None of these
{2}
{3,5,7}

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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