Question

which of the following are sets? justify your answer.

(1). the collection of all the month year beginning with letter "J".
(2) the collection of ten most talented writers of India.
(3) a team of 11 best Cricket batsman of the world.
(4) the collection of all boys in your class.
(5) the collection of all even integers.

seperate has sets and not sets and justify the answer

Answer 1

set is a collection of well definited elements .
1) collection of month is well defined so, this is set

2) we can't say who is the most talented writer in India so , this is not well defined so, this is not a set .

3) similarly we can't say who is the best cricket batsman of the world , so , this is not a set

4) this is a set

5) this is also set because collection of all even integers is well defined .

Answer 2

set is a collection of well definited elements .

1) collection of month is well defined so, this is set

2) we can't say who is the most talented writer in India so , this is not well defined so, this is not a set .

3) similarly we can't say who is the best cricket batsman of the world , so , this is not a set

4) this is a set

5) this is also set because collection of all even integers is well defined .