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OpenStudy (anonymous):
A tourist bus travels 120 kilometers to its destination. The average speed returning is twice the average speed going and the time for a round trip is 5 hours. What is the average speed of the bus in going to its destination?
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OpenStudy (math&ing001):
Let x be the average speed going. x+2x = 120/5 Solve for x.
OpenStudy (anonymous):
how?
OpenStudy (math&ing001):
Add the x-terms then divide by 3.
OpenStudy (anonymous):
so the answer is 8 km/hr.
OpenStudy (math&ing001):
Yep !
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OpenStudy (anonymous):
thanks
OpenStudy (math&ing001):
Welcome !
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