Question

Yuto and Lian are at train stations 1,880 kilometers apart. Yuto boards a train heading east at an average speed of 220 kilometers per hour. At the same time, Lian boards a train heading west on a parallel track at an average speed of 250 kilometers per hour. How far has Lian traveled when the two trains pass each other?

470 kilometers
880 kilometers
940 kilometers
1,000 kilometers

Answer 1

The correct answer is D

Explanation:

Answer 2

For the answer to the question above, we'll have to use the formula for velocity which is v = d
t and d = vt

Since the total distance is given, therefore we can get the time and it will look like this.

220t + 250t = 1880
470t = 1880
470 470
the problem indicates that the train runs 250kph
Let's substitute:

d = 250(4)

the distance traveled by Lian is 1000km