Class 6 - Set Worksheet 2
P = {1, 2, 3, 4, 5, 6, 7} Q = {a, e, i, o, u} R = {10, 12, 14, 16, 18}
1. 3 ∈ R, mark True / False.
a) True b) False
2. e ∈ Q, mark True / False.
a) True b) False
3. 14 ____ R
a) = b) ≠
c) ∈ d) ∉
4. 5 ____ R
a) = b) ≠
c) ∈ d) ∉
5. 7 ∉ P, mark True / False.
a) True b) False
6. Write the below mentioned set in Roster form.
The set of prime numbers less than 15.
a) {2, 3, 5, 7, 11, 12, 13}
b) {2, 3, 5, 7, 11, 13, 17}
c) {2, 3, 5, 7, 11, 13}
d) None of these
7. Write the below mentioned set in Roster form.
The set of multiples of 4 less than 25.
a) {4, 8, 12, 20, 24}
b) {4, 8, 12, 16, 20, 24, 28}
c) {4, 8, 12, 16, 20, 24}
d) None of these
8. Rewrite the following set in Roster form.
A = {x | x is an even number greater than 10 and less than 20}
a) {12, 14, 16, 18, 19}
b) {12, 14, 16, 18}
c) {12, 16, 18, 20}
d) {10, 12, 14, 16, 18, 20}
9. Write a set whose members are perfect square natural numbers and each element is less than 40.
a) P = {1, 4, 9, 16, 25, 36}
b) P = {1, 3, 9, 16, 25, 36}
c) P = {4, 9, 16, 25, 36}
d) P = {1, 4, 9, 16, 25, 36, 49}
10. A set of A of all 2-digit numbers, the sum of whose digits is 8.
a) A = {17, 26, 44, 53, 62, 71, 80}
b) A = {17, 26, 35, 44, 53, 62, 71, 80}
c) A = {17, 26, 35, 44, 53, 62, 71}
d) None of these
11. Write the following set in the set builder form.
P = {a, e, i, o, u}
a) P = {x | x is a vowel of English alphabet}
b) P = {x | x is a letter of English alphabet}
c) P = {x | x is a consonant of English alphabet}
d) None of these
12. Write the following set in the set builder form.
A = {January, March, May, July, August, October, December}
a) A = {x | x is a month of the year having 30 days}
b) A = {x | x is a month of the year having 31 days}
c) A = {x | x is a month of the year having 28 days}
d) None of these
13. Write the following set in the set builder form.
R = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
a) R = {x | x is a natural number less than 10}
b) R = {x | x is a natural number less than 9}
c) R = {x | x is a whole number less than 10}
d) none of these
14. Write the following sets in a Roster form.
P = {x | x is number of dots on a dice}
a) P = {1, 2, 3, 5, 6}
b) P = {1, 2, 4, 5, 6}
c) P = {1, 2, 3, 4, 5, 6}
d) None of these
15. Write the following sets in a Roster form.
Q = {x | x is prime factor of 30}
a) Q = {1, 2, 3, 10, 15, 30}
b) Q = {1, 2, 3, 5, 6, 10, 15, 30}
c) Q = {2, 3, 5, 6, 10, 15}
d) None of these
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