The commuter rail between Scottsdale and Sherbourne is 200 km of track, and one train makes a round trip in 5 hours. If Harsha boards the train at the Forest Grove station, which is located one fifth of the track's length out from Scottsdale, how long will it take her to get to Sherbourne?
Answers.
A) .5 hours	B) 1 hour	C) 1.5 hours	D) 2 hours	E) 2.5 hours
2 hoursistance between Scottsdale and Sherbourne = 200 km   Time for a one-way trip between Scottsdale and Sherbourne:   5/2= 
<gadget id="calculator">  5/2</gadget>
<output>5/2 = around 2.5</output>
2.5 hours   2 hoursistance between Forest Grove and Scottsdale: 200/5= 
<gadget id="calculator">200/5</gadget>
<output>40</output>
40 km   2 hoursistance between Forest Grove and Sherbourne: 40 x 4= 160 km   Time between Scottsdale and Forest Grove: 2.5/5= 
<gadget id="calculator">2.5/5</gadget>
<output>0.5</output>
.5 hours   Time between Forest Grove and Sherborne: .5 x 4= 2 hours.
<result>D</result>
The commuter rail between Scottsdale and Sherbourne is 200 km of track, and one train makes a round trip in 5 hours. If Harsha boards the train at the Forest Grove station, which is located one fifth of the track's length out from Scottsdale, how long will it take her to get to Sherbourne?