Odpowiedź:
60% wynosi 36
100% * 36 : 60% = 3600 : 60 = 60
90% wynosi 180
100% * 180 : 90% = 18000/90 = 200
40% wynosi 90
100% * 90 : 40% = 9000/90 = 100
30% wynosi 120
100% * 120 : 30% = 12000/30 = 400
90% wynosi 270
100% * 270 : 90% = 27000/90 = 300
17% wynosi 510
100% * 510 : 17% = 51000/17 = 3000
15% wynosi 450
100% * 450 : 15% = 45000/15 = 3000
13% wynosi 390
100% * 390 : 13% = 39000/13 = 3000