A train 100 miles west of St. Louis is traveling east at 60 miles per hour. How long will it take to be 410 miles east of St. Louis.

Question

A train 100 miles west of St. Louis is traveling east at 60 miles per hour. How long will it take to be 410 miles east of St. Louis.

Answer 1

Distance = (Rate)(Time), so Time = Distance/Rate

                                                             = 510/60 = 8.5 hours

Answer 2

Ricky,

 

The train is 100 miles west.

 

So it travels 100 miles east to get to St. Louis

Then it travels another 410 miles so that it is 410 miles East of St. Louis

 

Total distance traveled = 100 + 410 = 510

Speed = 60 mph

 

Time = 510/60 = 8.5 hrs