Răspuns :
Aflam ce drum a parcurs in a 2-a si a3-a zi.
4 x 18 = 72 km
Aflam ce distanta a parcurs in prima a doua si a treia zi
72 x 3= 216km lungimea drumului
4 x 18 = 72 km
Aflam ce distanta a parcurs in prima a doua si a treia zi
72 x 3= 216km lungimea drumului
I 1/3din x
rest r1=2/3din x
II 1/4 din r1
rest 3/4 din r1=18 km
r1=18*4/3=24 km
24km=2/3*x ⇒x=24*3/2=36 km
verificare I 36:3=12 km, rest 36-12=24 km
II 24:4=6km, rest 24-6=18 km
rest r1=2/3din x
II 1/4 din r1
rest 3/4 din r1=18 km
r1=18*4/3=24 km
24km=2/3*x ⇒x=24*3/2=36 km
verificare I 36:3=12 km, rest 36-12=24 km
II 24:4=6km, rest 24-6=18 km