Răspuns :
x drum.............100%
parcurs .......... 65%
ramas ........... 100% - 65% = 35% .................. 70 km
35% · x = 70km
35 · x /100 = 70 km
35 · x = 70 ·100 km
x = 7000 :35 km = 200 km
parcurs .......... 65%
ramas ........... 100% - 65% = 35% .................. 70 km
35% · x = 70km
35 · x /100 = 70 km
35 · x = 70 ·100 km
x = 7000 :35 km = 200 km