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MIDDLE SCHOOL PROBLEM OF THE WEEK

Here is a brain teaser for you to solve. Send us your solution, using the form below, and we will share it here...

Problem

Kiisha and Sean wanted to get to a music festival at a town 21 miles away, but having missed the bus they would have to make their own way. Kiisha was a good cyclist and could speed along on her bicycle at 16 mph. Sean didn't own a bicycle, but figured he could average 12 mph on Kiisha's cycle. Kiisha can jog at 6 mph quite happily, while Sean considers himself a runner and can jog at 8 mph for several miles.

How should they arrange their journey so that they leave home together and arrive at the festival together in the shortest possible time, by a mixture of jogging and sharing the bicycle?

Your Solution

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SOLUTIONS FROM STUDENTS:
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