The Problem:

Question

Create three sets P, Q and R such that:

P ∩ Q = P
P ∩ R =empty set Click for more options
Q ∩ R has exactly 3 elements

1 mark for creating 3 sets
1 mark for satisfying P ∩ Q = P
1 mark for satisfying P ∩ R =empty set

Answer 1

since P∩Q=P, P⊆Q
so, let's say
P = {1,2,3}
Q = {1,2,3,4,5,6}
R = {4,5,6,7,8}