Odpowiedzi

2010-02-16T21:16:55+01:00
10,2 - 85%
x - 100%
85x = 1020/85
x=12

288 - 60%
x-100%
28800=60x/60
480 = x

1 - 5%
x - 100%
100=5x
20=x
2 4 2