ICSE Class 6 Mathematics - Sets - Test 3 (Advanced)
1. If A = {5, 10, 15, 20}, which number is an element of A?
A. 12
B. 10
C. 25
2. If A = {a, b, c, d}, which is a subset of A?
A. {a, e}
B. {b, f}
C. {b, d}
3. If A = {2, 3, 5} and B = {5, 7, 11}, what is A union B?
A. {2, 3, 5, 7, 11}
B. {5}
C. {2, 3, 7, 11}
4. If A = {1, 2, 4, 8} and B = {2, 4, 6, 8}, what is A intersection B?
A. {1, 6}
B. {2, 4, 8}
C. {1, 2, 4, 6, 8}
5. Which pair of sets is disjoint?
A. {red, blue} and {blue, green}
B. {1, 3} and {3, 5}
C. {red, blue} and {green, yellow}
6. If A = {1, 2, 3, 4} and B = {3, 4, 5}, how many elements are in A union B?
A. 5
B. 6
C. 7
7. If A = {m, n, o, p} and B = {o, p, q}, how many elements are in A intersection B?
A. 1
B. 2
C. 3
8. If U = {a, b, c, d, e} and A = {b, d}, which elements are not in A?
A. {b, d}
B. {a, b, c}
C. {a, c, e}
9. Which is the set of multiples of 4 less than 18?
A. {4, 8, 12, 16}
B. {4, 8, 12, 16, 20}
C. {1, 2, 4, 8}
10. The set {2, 4, 6, 8, 10} represents:
A. Odd numbers less than 10
B. Even natural numbers from 2 to 10
C. Factors of 10 only
11. Which set is equal to {1, 2, 2, 3}?
A. {1, 2}
B. {2, 3}
C. {1, 2, 3}
12. How many elements are in the set of letters of the word BANANA?
A. 3
B. 4
C. 6
13. Which is the set of factors of 18?
A. {1, 2, 3, 6, 18}
B. {1, 2, 3, 6, 9, 18}
C. {2, 4, 6, 8, 18}
14. Which is the set of composite numbers between 1 and 10?
A. {2, 3, 5, 7}
B. {1, 4, 6, 8}
C. {4, 6, 8, 9}
15. The set of whole numbers less than 100 is:
A. Finite set
B. Infinite set
C. Empty set
16. The set of all multiples of 5 is:
A. Empty set
B. Infinite set
C. Singleton set
17. If A = {2, 4} and B = {6, 8}, what is A union B?
A. {}
B. {2, 4}
C. {2, 4, 6, 8}
18. If A = {2, 4} and B = {6, 8}, what is A intersection B?
A. {}
B. {2, 4, 6, 8}
C. {2, 6}
19. If A = {1, 2, 3, 4} and B = {3, 4, 5}, which elements are in A but not in B?
A. {3, 4}
B. {1, 2}
C. {1, 2, 5}
20. Which is a proper subset of {2, 4, 6}?
A. {2, 4, 6}
B. {2, 5}
C. {2, 4}