# Which of the following are sets? Justify your answer.(i) The collection of all the months of a year beginning with the letter “J”(ii) The collection of ten most talented writers of India.(iii) A team of eleven best cricket batsmen of the world.(iv) The collection of all boys in your class.(v) The collection of all even integers.

We know that a set is a collection of things that have something in common or follow a rule. Set notation uses brace {} with elements separated by commas.

(i) Collection of all months of a year beginning with the letter “J” = {January, June, July}

This is a set.

(ii) Collection of ten most talented writers in India cannot be accurately defined.

This is not a set.

(iii) Team of eleven best cricket batsmen of the world cannot be accurately defined.

This is not a set.

(iv)Collection of boys in class = {Rohan, Sushant, Mohan, Rehan}

This is a set.

(v) Collection of all even integers = {… -4, -2, 0, 2, 4, …}

This is a set.

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