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A robot moving forward at a constant speed takes 2.5 hours to travel 1 kilometer. Moving forward at this same constant speed, it takes the robot 90 seconds to travel the length of a particular hallway. How many meters long is the hallway?

 May 26, 2020
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We see that 2.5 hours is the same as  minutes, or  seconds. This is 100 times longer than the robot was traveling the hallway, meaning the hallway is  kilometers, or  10

meters long.

 Jun 16, 2020

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