Two trains on opposite tracks leave the same station at the same time. One train travels at an average speed of 80 kilometres pe

Question

2 years ago

11

r hour and the other travels at an average speed of 70 kilometres per hour. How long after they leave the station will they be 50 km apart?

1 answer:

GREYUIT [131] · Answer 1 · 2022-05-24T03:41:57+03:00

7 0

9514 1404 393

Answer:

20 minutes

Step-by-step explanation:

The trains are separating at the rate of 80 +70 = 150 km/hour. The time required to be 50 km apart is then ...

time = distance/speed = (50 km)/(150 km/h) = 1/3 h = 20 minutes