Răspunsuri

2014-07-24T14:06:25+03:00
15kg........9l
x...............15l

x=15*15/9

x=15*5/3

x=5*5

x=25 kg lamai
2014-07-24T14:17:48+03:00
15 kg.......9 litri suc
 x kg........15 litri suc
15 supra x =9 supra 15 
x inmultit cu 9 = 15 inmultit cu 15
9x=225
x=225:9
x=25