Discrete Mathematics Mock Test 2

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Question 1 of 10

1. The Cartesian Product B x A is equal to the Cartesian product A x B.

True

False

Question 1 of 10

Question 2 of 10

2. The members of the set S = {x | x is the square of an integer and x < 100} is ________________

{1, 4, 9, 16, 25, 36, 64, 81, 85, 99}

{0, 2, 4, 5, 9, 58, 49, 56, 99, 12}

{0, 1, 4, 9, 16, 25, 36, 49, 64, 81}

{0, 1, 4, 9, 16, 25, 36, 49, 64, 121}

Question 2 of 10

Question 3 of 10

3. If in sets A, B, C, the set B ∩ C consists of 8 elements, set A ∩ B consists of 7 elements and set C ∩ A consists of 7 elements then the minimum element in set A U B U C will be?

Question 3 of 10

Question 4 of 10

4. If f(x) = 2^x then range of the function is?

(-∞, ∞)

None of the mentioned

(0, ∞)

(-∞, ∞) - {0}

Question 4 of 10

Question 5 of 10

5. If n(A X B) = n(B X A) = 36 then which of the following may hold true?

None of the mentioned

n(A)=9, n(B)=4

n(A)=2, n(B)=18

n(A)=6, n(b)=6

Question 5 of 10

Question 6 of 10

6. If n(A)=10, n(B)=30,n(C)=50 and if set A, B, C are pairwise disjoint then which of the following is correct?

n(B U C)=0

All of the mentioned

n(A U B U C)=90

n(A U B)=0

Question 6 of 10

Question 7 of 10

7. If A is {{Φ}, {Φ, {Φ}}}, then the power set of A has how many element?

Question 7 of 10

Question 8 of 10

8. Which of the following is subset of set {1, 2, 3, 4}?

All of the mentioned

{1, 2, 3}

{1}

{1, 2}

Question 8 of 10

Question 9 of 10

9. If n(A)=20 and n(B)=30 and n(A U B) = 40 then n(A ∩ B) is?

Question 9 of 10

Question 10 of 10

10. If the number of subsets of a set are 4 then the number of elements in that sets are _________

Question 10 of 10