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Grade 8 - Mathematics
4.51 Sets and Relations Review Test

Q 1: A = {2,4,6} and B = {4,6,8} then find B - A.
{8}
{}
{2,4,6,8}
{4,6,8}

Q 2: A = {2,3,5,7} and C = {4,6,8,10}, is these two sets disjoint or not.
Not a disjoint
Disjoint

Q 3: n(A) = 8 and n(B) = 3 and n(AB) = 2 find n(AB)
7
11
N0ne of these
9

Q 4: A = {2,3,5}, B = {2,3,5} and C = {3,5,7} find A(BC)
{2,3,5}
{3,5}
{3,5,7}
None of these

Q 5: In a group, members know atleast one of the languages, French and Spanish. 125 members know French, 75 members know Spanish and 50 of them know both French and Spanish. How many members are there in the group?
160
100
150

Q 6: E = {x/x is a prime number and x < 12}.
E = {2,3,5,7,11}
E = {2,4,6,8,10}
E = {1,3,5,7,9,11}

Q 7: A = {7,8,9} and B = {8,9,10} then find A - B.
{7}
{7,8,9}
None of these
{10}

Q 8: A = {1,2,3}, B = {The first three natural numbers}, C = {a,b,c,d}, D = {d,c,a,b}, E = {a,e,i,o,u}, F = {Set of vowels in English Alphabets} and G = {3,1,2}
G ____ A.
Equal
Not equal

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