SOLUTION: How far away can a boy ride his bicycle if he rides away at 10 kilometers per hour and returns at 9 kilometers per hour? The entire trip takes 9.5 hours.
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Question 594773: How far away can a boy ride his bicycle if he rides away at 10 kilometers per hour and returns at 9 kilometers per hour? The entire trip takes 9.5 hours.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
How far away can a boy ride his bicycle if he rides away at 10 kilometers per hour and returns at 9 kilometers per hour? The entire trip takes 9.5 hours.
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His avg speed is 2*10*9/(10 + 9) km/hr
= 180/19 km/hr
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RT distance = r*t = (180/19)*9.5 = 90 km
Each way = 45 km
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