Răspuns:
Explicație pas cu pas:
volum cub =volum bucata prajitura=muchia^3=125 cm3
volum total 12 bucati=12*125=1500 cm3
30/100*x=1500 cm3
x=volum prajitura
x=1500*100/30=50*100=5000 cm3
30/100* m prajitura = 420
m prajitura=420*100/30=14*100=1400 g=1,4 kg
volum caserola=15*10*8= 1200 cm3
nr.de bucati prajitura =1200/125= 9,6 prajituri