Răspuns :
250-180=70 cutii
70 cuutii=1400 globuri
1400:70=20 globuri/ cutie
Proba
250 x 20=5000 globuri
180 x 20=3600 globuri
5000-3600=1400 dif de globuri
70 cuutii=1400 globuri
1400:70=20 globuri/ cutie
Proba
250 x 20=5000 globuri
180 x 20=3600 globuri
5000-3600=1400 dif de globuri