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Mathematics Multiple Choice
Quiz 1
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Q.1
If P X Q is an empty set then which of the following is a null set?
a) only P
b) only Q
c) either P or Q
d) both P and Q
Q.2
If (a, b) = (x, y) then___________
a) a=x
b) a=y
c) a=y and b=x
d) a=x and b=y
Q.3
If set P has 4 elements and set Q has 5 elements then find the number of elements in P X Q.
a) 9
b) 45
c) 20
d) 54
Q.4
If (x+y-= (5,then find values of x and y.
a) x=3 and y=10
b) x=3 and y=4
c) x=7 and y=4
d) x=7 and y=10
Q.5
Is (a, b) = (b, a)?
a) True
b) False
Q.6
If P X Q haselements then which is not possible?
a) n(P)=1 and n(Q)=10
b) n(P)=10 and n(Q)=1
c) n(P)=2 and n(Q)=5
d) n(P)=5 and n(Q)=4
Q.7
If P = Q then P X Q = Q X P is true or not?
a) True
b) False
Q.8
If A X B = {(a), (b), (c), (a), (b), (c)} then find set A.
a) {1}
b) {1, 2}
c) {1, a}
d) {a, b, c}
Q.9
If A X B = {(a), (b), (c), (a), (b), (c)} then find set B.
a) {1}
b) {1, 2}
c) {1, a}
d) {a, b, c}
Q.10
If set A has 2 elements and set B has 3 elements then how many subsets does A X B have?
a) 6
b) 8
c) 32
d) 64
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