Question

a diesel train left berlin and traveled north at an average speed of 25 km/h. A cattle train left at the same time and traveled in the opposite direction with an average speed of 35 km/h. Find the number of hours the cattle train needs to travel before the trains are 600 km apart.

Answer 1

Answer:

10 hours

Step-by-step explanation:

Let $N$ represent the distance the train heading north has traveled

Let $S$ represent the distance the train heading south has traveled

Let $t$ represent the number of hours that has passed

$N=25t\\S=35t$

$600=N+S$

$600=25t+35t\\600=60t\\t=10$