Răspuns:
575 m(R)
425m(E)
Explicație pas cu pas:
R+E=1km
E=R-150m
150m |
R |---------|---------| | => 1km
E |---------| |
1km = 1000m
1000-150= 850 m (2 segmente egale)
850:2=425m(E/1 segment)
425+150=575 m(R)
Verificare:
575+425=1000m (1km)
575-425=150m