Question

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 natural numbers less than 100.
(vi) A
collection of novels written by the writer Munshi Prem Chand.
(vii)
The collection of all even integers.
(viii)
The collection of questions in this Chapter.
(ix) A
collection of most dangerous animals of the world

Answer 1

@qweqwe123123123123111

Answer 2

I would say that they're all sets, if for no other reason than they are describable groups that can be identified and listed.

That definition does NOT address a particular set's utility, though. For instance many of your sets are entirely subjective such as II and III, and number viii is downright ethereal and probably can't be quantified! :-)

Answer 3

Thank you sir