Set Builder Form

Q.

If B = {1, 3, 5, 7, 9}, the set-builder representation of B is

1. B = {x: x is an odd number less than 10}

2. B = {x: x is an odd natural number}

3. B = {x: x is an odd natural number less than 10}

4. B = {x: x is a prime number less than 10}

Q.

Describe the following sets in set-builder form :

(i) A = {1, 2, 3, 4, 5, 6}

(ii) B = {1, $\frac{1}{2},\frac{1}{3},\frac{1}{4},\frac{1}{4},......$}

Q. The set builder representation of the set B = { 29, 31, 37, 41, 43, 47}, is

1. B = {x: x is an odd number more than 27 and less than 50}
2. B = {x: x is a prime number more than 27 and less than 50}
3. B = {x: x is an odd number more than 25 and less than 50}
4. B = {x: x is a prime number more than 25 and less than 50}

Q.

If B = {1, 3, 5, 7, 9}, the set-builder representation of B is _________.

1. B = {x : x is a prime number less than 10}

2. B = {x : x is an odd number less than 10}

3. B = {x : x is an odd natural number}

4. B = {x : x is an odd natural number less than 10}

Q.

Describe the following sets in set-builder form :

(i) A = {1, 2, 3, 4, 5, 6}

(ii) B = {1, $\frac{1}{2},\frac{1}{3},\frac{1}{4},\frac{1}{4},......$}
(2 Marks)

Q.

If B = {1, 3, 5, 7, 9}, the set-builder representation of B is

1. B = {x: x is an odd number less than 10}

2. B = {x: x is an odd natural number}

3. B = {x: x is a prime number less than 10}

4. B = {x: x is an odd natural number less than 10}

Q. An alien visiting Earth is fascinated by the English alphabet and decides to sort some letters into groups from the way they look. But unfortunately, the letters get jumbled. Help him sort the letters back into the original groups of three.

1. $(A,H,K);(S,C,O);(D,B,P)$
2. $(A,B,D);(C,S,H);(K,O,P)$
3. $(A,B,S);(C,P,H);(K,B,P)$
4. $(A,B,C);(D,S,O);(H,B,P)$