Răspuns:
Explicație pas cu pas:
m = masa dulcetii in borcanul plin
75% = 75/100 = 3/4
initial 3m/4
prima data 3/8*3m/4 = 9m/32
rest 3m/4 - 9m/32 = 24m/32 - 9m/32 = 15m/32
a doua oara 2/3*15m/32 = 5m/16
rest 15m/32 - 5m/16 = 15m/32 - 10m/32 = 5m/32
5m/32 = 125 g
m = 32*125/5 = 800 g