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Mathematics 11 Online
OpenStudy (anonymous):

a runner is exercising by going up 4 steps then down 3 steps on a flight of 20 stairs.it takes him 5 seconds to run up and down.he does this for 1 minute.what step does he end up on?

OpenStudy (anonymous):

please help!

OpenStudy (anonymous):

(4-3) steps = 5 seconds 1 min = 12 steps Therefore the runner ends on the 12th step

OpenStudy (anonymous):

@HawkCrimson Was right

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