a) 8/15 <x/15<23/15 =>x={9,10,11, 12,13,14,15,16,17,18,19,20,21,22}
b) 6/18 mai >sau egal x/18 mai <1 sau egal cu 4/18 =>x={6,7,8,9,10,11,12,13,14}
c) 19/24 < x/24 mai < sau egal cu 13/12 =>
19/24 <x/24 mai < sau egal cu 26/24 => x={20,21,22,23,24,25,26}
d)11/ 20 mai < sau egal x/ 60 mai < 2/3
=> 33/60 mai < sau egal x/60 mai < 40/60
x={33,34,35,36,37,38,39}
e) 7/9 mai < sau egal x/36 mai < 5/6 =>
28/36 mai < sau egal x / 36 mai < 30/36
x={28,29}
f) 25 % < x/ 100 < 29 %
25/100 < x/100 < 29/100
x={26,27,28}
