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

3 years ago

11

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

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?

Mathematics

2 answers:

crimeas [40] · Answer 1 · 2022-08-25T09:32:01+03:00

Answer: 20 minutes( 0.3333 hours) after they leave the station will they be 50 km apart, if the Two trains on opposite tracks leave the same station at the same time.

Step-by-step explanation:
One train travels at an average speed of 80 km/hr and the other travels at an average speed of 70 km/hr.

dezoksy [38] · Answer 2 · 2022-08-25T08:31:13+03:00

dezoksy [38]3 years ago

4 0

Answer:

1/3 hr or 20 min.

Step-by-step explanation:

Call the trains A and B

Remember d = rt

Distance train A travels is 80t

Distance train B travels is 70t

Now, 80t + 70t = 50

150t = 50

t = 50/150 = 1/3 hr or 20 min.