In which of the following statements does the expression 'P < U' is definitely true.
1
M > N ≥ O = P > R > U
2
M > U > O = P ≥ R > N
3
M > U ≥ O = P > R > Q
4
M > U ≥ O = P ≥ R > N
5
U ≥ M ≥ O = P > R > Q
In which of the following statements does the expression 'P < U' is definitely true.