cuki96
cuki96
08.07.2019 • 
Mathematics

Gary is riding from town a to town b. if he rides at a speed of 10 km per hour, he can reach town b at 13: 00. if he rides at a speed of 15 km per hour, he can reach town b at 11: 00. if he wants to reach town b at 12: 00, at what speed should he ride in km/h?

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