SOLUTION: A train travels 250 km at the speed of 60 km/hr and arrives ten minutes later than schedule. At what speed (in km/hr) should it travel to arrive exactly on time ?
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Question 1125616: A train travels 250 km at the speed of 60 km/hr and arrives ten minutes later than schedule. At what speed (in km/hr) should it travel to arrive exactly on time ? Found 3 solutions by Alan3354, josmiceli, MathTherapy:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! A train travels 250 km at the speed of 60 km/hr and arrives ten minutes later than schedule. At what speed (in km/hr) should it travel to arrive exactly on time ?
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Find the travel time at 60 km/hr.
Convert to minutes.
Subtract 10 minutes.
Find the speed using the smaller time.
You can put this solution on YOUR website! Let = the speed to arrive on time
Let = the time to arrive on schedual
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(2)
And
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(1)
The train should travel 62.5 km/hr
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Check:
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OK
You can put this solution on YOUR website! A train travels 250 km at the speed of 60 km/hr and arrives ten minutes later than schedule. At what speed (in km/hr) should it travel to arrive exactly on time?
Time taken to travel 250 km at 60 km/h:
Since arrival time was 10 minutes later than schedule then to be on time, time should be 4 hrs ()
We then get the speed it needs to travel to be on-time as:
