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Grade 8 - Mathematics
4.51 Sets and Relations Review Test

Q 1: C = {x/x N and 0 < x <5}.
C = {0,1,2,3,4}
C = {0,1,2,3,4,5}
C = {1,2,3,4}

Q 2: A = {Multiple of 5} and B = {Multiple of 7}, is these two sets disjoint or not.
Not a disjoint
Disjoint

Q 3: Two sets are equal if and only if they have the same elements. Example: A = {1,2,3} and B = {1,2,3}
False
True

Q 4: n(A) = 11, n(B) = 4 and n(AB) = 14 then find n(AB).
3
9
4
5

Q 5: A = {Monday, Tuesday, Wednusday} and B = {Thursday, Friday, Saturday} Which of the following represent A U B?
{Monday, Tuesday, Wednusday, Thursday, Friday, Saturday}
{Wednusday, Thursday, Friday, Saturday}
{Monday, Tuesday, Wednusday, Thursday}
{Monday, Tuesday, Thursday, Friday, Saturday}

Q 6: In a group of 80 persons, 30 drink Coke but not Pepsi and 41 drink Coke. How many drink Pepsi, but not Coke?
45
39
24

Q 7: A = {3,4,5,6,7,8}.
n(A) = 8
n(A) = 6
n(A) = 4
n(A) = 5

Q 8: Q is a set of whole numbers.
Q = {0,1,2,3,4,5,.....}
Q = {1,2,3,4,5,........}
Q = {.....-3,-2,-1,0,1,2,3,.....}

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