Which of the following are sets? Justify your answer. The collection of all boys in the eleventh class of a particular school.

Which of the following collections are sets? Justify your answer: The collection of all girls in your class.

Which of the following collections are sets? Justify your answer: The collection of prime integers.

Which of the following are sets ?justify your answer. 1.The collection of all the months of a year beginning with letter M

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.

Which of the following collections are sets? Justify your answer: The collection most talented writers of India.

Which of the following collections are sets? Justify your answer: The collection of difficult topics in Mathematics.

Which of the following collections are sets? Justify your answer: The collection of good hockey players in India.