13 marks in total

Problem 1
---------

[Marking scheme: three marks for correct, -1 for each mistake (even a bracket wrong} ]

G=({0, 1, 2, 3, 4}, {(0,1), (1,0), (1,3), (2,4), (4,1)})

Problem 2
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[Marking scheme: 2 marks, -1 for each mistake]

Problem 3
---------

[Marking scheme: 1 mark each]

(i) (2, 4, 1, 3)
(ii) No

Problem 4
---------

[Marking scheme: 3 marks for correct, -1 for each mistake. Relationship is m(m-1) ]

2
6
12
20
30
42

Problem 5
---------

[Marking scheme: 3 marks for correct, -1 for each mistake. Relationship is m! ]

2
6
24
120
720
5040