Răspuns:
a) 9/9, 8/9, 7/9, 6/9, 5/9, 4/9, 3/9, 2/9, 1/9.
b) 9/9, 8/9, 7/9, 6/9, 4/9, 2/9, 1/9.
c) 10/10, 8/10, 7/10, 6/10, 4/10, 3/10, 1/10.