Distance Question in fundamental skills assessment

Hi. The below question is from Greg’s fundamentals test for algebra. Can someone please help with the right approach for this?

Ahmed and Sanjeet are running on a 2-mile circular track, running at constant speeds of 8 mph and 5 mph respectively, in the same direction. If Ahmed is currently 1 mile behind Sanjeet, how many minutes will pass before Ahmed passes Sanjeet twice?

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