Question

Two trains leave a city at the same time. One train goes west at a constant rate of 60 mph. The other goe east at a rate of 50 mph. How long will it take the trains to be 550 miles apart


A) 5 hours

B) 7 hours

C) 9 hours

D) 11 hours

Answer 1

Answer:

5 hours.

Step-by-step explanation:

Combined speed of the trains = 50 + 60 = 110 mph.  They are increasing the distance between them at 110 mph.

Therefore  the time when they are 550 miles apart  is distance / speed

= 550/110 = 5 hours.

Answer 2

Answer:

The answer is A.) 5 hours

Step-by-step explanation:

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