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At a speedway, the yellow car completes a lap every 30 seconds and the blue car completes a a lap every 50 seconds. If the cars both start at the same place, how long will it take for the blue car to 'lap' the yellow car?
5 years ago

Answers

R_scott
lapping means the yellow car passes the blue car
... it has completed one more lap than the blue car

t = time to lap ... in seconds

t / 30 = (t / 50) + 1
5 years ago

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