Răspunsuri

2014-05-13T19:51:26+03:00
5 kg cafea verde ....................3,6 kg cafea prajita
x kg cafea verde ....................................12 kg cafea prajita
 
x=(12 ·5 ) / 3,6
x=60/3,6
x=60/1 ·10/36
x=50/3 kg