scoala1=700m+600m=1300m=1 kmsi300m
sc2=1500m+500m=2000m=2 km
sc3=700m+700m=1400m=1km si 400m
sc4=400m+700m=1100m=1kmsi100m
aflam cate minute face un copil parcurgand un metru de drum
daca in 1000m ........ 20 minute
1m............x
--------------------------
x=20:1000=0,02 minute parcurge pe un metru de drum
copii trebuie sa se intalneasca la ora 9,45
sc1 parcurge traseul in 20+300x0,02=26 minute
sc2 2x2=40 minute
sc3 20+400x0,02=28 minute
sc4 20+100x0,02=22 minute
sc1 pleca la ora 9,45-0,26=9,19
sc2 pleaca la ora 9,45-0,40=9,05
sc3 pleaca la ora 9,45-0,28=9,17
sc4 pleaca la ora 9,45-0,22=9,23
