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Mathematics 4 Online
OpenStudy (anonymous):

Tom, Jack, and Harry started out on a 100-mile journey. Tom and Harry went by automobile at a speed of 25 mph, while Jack jogged along at 5 mph. After a certain distance, Harry got out of the car and continued on jogging at 5 mph while Tom turned the automobile around and went back for Jack. Tom and Jack arrived by automobile at the journey's destination at exactly the same time that Harry arrived. How many hours were required to complete the 100 mile trip?

OpenStudy (anonymous):

The Bog standard is the world's fastest toilet, and can travel at 68 kilometers per hour. How far (in kilometers) can it go in 225 minutes?

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