Question

Can the no. of children in a class be treated as a set? For eg, if the no. of students in a class is 47, can we write it as {47}? Why/why not? Explain eleborately with examples.

Answer 1

yes, set is a collection of well defined objects.
let the set =A
A ={ write all the students names separating with commas}
number of students in the class =47
n(A)=47
n(A) is called as cordinal number of the set means number of elements in the set