Răspunsuri

2014-05-31T22:21:43+03:00
90:1,5=60 g(cantareste un mp3)
3x90+4x60=210+240=450 grame (cantaresc impreuna))
2014-05-31T22:58:18+03:00
90 * 1,5 = 135
135 - 90 = 45 g MP3
3 * 90 + 45 * 4 = 270 + 180 = 450 g cantaresc toate
3 3 3