Răspuns :
a= 305q
b= c- 75q
c
a+b+c=3407
305q+ c- 75q + c = 3407q
230q +2c=3407
2c = 3177 q
c = 3177/2 q
c= 1588.5q
b= 1588.5q -75q
b=1513.5q
b= c- 75q
c
a+b+c=3407
305q+ c- 75q + c = 3407q
230q +2c=3407
2c = 3177 q
c = 3177/2 q
c= 1588.5q
b= 1588.5q -75q
b=1513.5q
305
1vagon.I------II----I
2vagonI------l }3.407q
75
3vagonl------l----l
1.Facem marimile egale.
3.407q-380q=3.027
2.aflam q din al doilea vagon.
3.027:3=1.009
3.Aflam primul vagon.
1.009+305=1.314
4.Aflam al treilea vagon.
1.009+75=1.084
Raspuns: primul vagon=1.314;;al doilea vagon1.009;;;al treilea vagon=1.0084