Mathematics

Question 1

1The empty set is a subset of every set.

Medium

A. True B. False

Question 2

2Which set is infinite?

Easy

A. the set of vowels B. the set of whole numbers C. the set of days of the week D. the set of months in a year

Question 3

3The symbol ∈ means

Easy

A. union B. is not an element of C. is a subset of D. is an element of

Question 4

4{2, 4} ⊂ {1, 2, 3, 4}.

Easy

A. True B. False

Question 5

5B is a subset of A if

Easy

A. A is empty B. B has more elements C. every element of B is in A D. A and B have no common elements

Question 6

6{1, 2, 3} and {3, 2, 1} are equal sets.

Easy

A. True B. False

Question 7

7The set of all elements under consideration is the

Easy

A. complement B. intersection C. empty set D. universal set

Question 8

8If U = {1, 2, 3, 4, 5} and A = {1, 3}, find A′.

Easy

A. { } B. {1, 3} C. {1, 2, 3, 4, 5} D. {2, 4, 5}

Question 9

9If A = {1, 2, 3, 4} and B = {3, 4, 5}, find A ∩ B.

Easy

A. {5} B. {1, 2, 3, 4, 5} C. {3, 4} D. {1, 2}

Question 10

10In a class of 40 pupils, 25 like football, 20 like volleyball and 8 like both. How many like neither game?

Medium

A. 7 B. 5 C. 3 D. 12