Students in a class were told to consider the set of all natural numbers up to and including 27. They were presented with the following subsets:

A= (2,3,8,13,17,20,23,25,27)

A n B = (2,8, 20)

A U B = (1,2,3,5,7,8,12,13,17,18,20,23,27)

C= (5,10,15,20)

The universal set would be?

Written response of each set

a) W: ( set of whole numbers less than 10)

b)I: (-4 < x < 5, xEI)

c)M:(a/a= -3x, 0 < x < 5, xEW)