Which of the following collections are sets ? Justify your answer :

(i) A collection of all natural numbers less than 50.

(ii) The collection of good hockey players in India.

(iii) The collection of all girls in your class.

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Solution

(i) The collection of all natural numbers less than 50 forms a set as it is well defined.

(ii) It isnot a set as the term 'good' is not well defined.

(iii) It forms a set as it is well defined.

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Which of the following collections are sets ? Justify your answer :

(i) A collection of all natural numbers less than 50.

(ii) The collection of good hockey players in India.

(iii) The collection of all girls in your class.

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100.

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