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- Jan 26, 2012
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Here is a word problem aimed at the upper-high school level that you might see on a college entrance exam in the US. Welcome back to school everyone! 
Problem:
On a partly cloudy day, Derek decides to walk back from work. When it is sunny, he walks at a speed of s miles/hr (s is an integer) and when it gets cloudy, he increases his speed to (s + 1) miles/hr. If his average speed for the entire distance is 2.8 miles/hr, what fraction of the total distance did he cover while the sun was shining on him?
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Remember to read the POTW submission guidelines to find out how to submit your answers!
Problem:
On a partly cloudy day, Derek decides to walk back from work. When it is sunny, he walks at a speed of s miles/hr (s is an integer) and when it gets cloudy, he increases his speed to (s + 1) miles/hr. If his average speed for the entire distance is 2.8 miles/hr, what fraction of the total distance did he cover while the sun was shining on him?
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Remember to read the POTW submission guidelines to find out how to submit your answers!