t = s/v t = 304/ 8 = 38,5 ore v1 = 8 km/ora , v2 = 2x 8 = 16 km/ora
s1 = distanta parcursa cu 8 km/ora, s2 = distanta parcursa cu 16 km/ora
t = t1 + t2 + t3 t1 = timpul pt s1, t2 = timpul pt s2, t3 = pauza de 5 ore
t = s1/v1 + s2/v2 + t3 = 38,5
s1 / 8 + s2/16 + 5 = 38,5 s1+s2 = 304 ==> s1 = 304-s2
(304-s2)/8 + s2/16 = 33,5 <==> 608-2s2 +s2 = 33.5 x 16 608- s2 = 536
s2 = 608 - 536 = 72