Two bike riders, 175 miles apart, begin traveling toward each other at noon. One travels at 20 miles per hour, the other at 15 miles per hour. Also at noon, a fly begins flying between the riders, starting at the front of the slower bike. The fly travels at 20 miles per hour and can change direction without losing any time. How far will the fly travel before the bicycles meet?

Question

Collin Noble

Mathematics

8 November, 02:01

Two bike riders, 175 miles apart, begin traveling toward each other at noon. One travels at 20 miles per hour, the other at 15 miles per hour. Also at noon, a fly begins flying between the riders, starting at the front of the slower bike. The fly travels at 20 miles per hour and can change direction without losing any time. How far will the fly travel before the bicycles meet?

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Answers (1)

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Adison West · Answer 1

The bicycles will meet 175 / (20+15) hour after the start - - > the fly will flying

175 / (20+15) hour long. The fly travels at 20 mph. The fly will travel

20*175 / (20+15) miles = 100 miles

(sorry for bad english)