Which of the following are sets ? Justify your answer.

The collection of ten most talented writers of India.

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The collection of ten most talented writer of India is not a well-defined collection because the criteria for determining a writer's talent vary from person to person.

Hence, this collection is not a set.

Similar Questions

Which of the following are sets ? Justify your answer.

The collection of all natural numbers less than $100 .$

Write the following as intervals :

 $\{ x:x \in R, - 4\, < \,x\, \le \,6\} $

The set $A = \{ x:x \in R,\,{x^2} = 16$ and $2x = 6\} $ equals

Write the following sets in roster form :

$A = \{ x:x$ is an integer and $ - 3 < x < 7\} $

$A = \{ x:x \ne x\} $ represents