Răspuns :
10 portocale ----------3,15 kg
1 portocala-------------x kg
x=1×3,15/10
X=3,15:10
x=0,315 kg
O portocala cantareste 0,315 kg
1 portocala-------------x kg
x=1×3,15/10
X=3,15:10
x=0,315 kg
O portocala cantareste 0,315 kg