repedeeee dau coroanaa

Repedeeee Dau Coroanaa class=

Răspuns :

x+y=34 km
x=y+14 km
y+14+y=34 => y=10km => x=24km
a+b=34 km
a=b+14 km
b+14+b=34 
2b=34-14=20
b=20:2
b=10 km.
a=10+14=24 km.
V: 24+10=34 km
R: un biciclist prcurge 10 km.
    al doilea biciclist    24 km.