4 / 6 + 30 = 6 / 6
1 / 6 = 30 : 2 = 15
6 / 6 = 15 × 6 = 90 probleme in a treia saptamana
4 / 4 = 90 : 3 × 4 = 120
1 / 4 + 9 = 30 + 9 = 39 probleme in a doua saptamana
3 / 3 = 120 : 4 × 3 = 90
193 = 30
30 + 6 = 36 in prima saptamana
36 + 39 + 90 = 165 a avut in total