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12 September, 09:39

Dennis rollerblades 100 yards per minute while Gina rollerblades 85 yards per minute, If they start out skating together, How many yards ahead will Dennis be after one hour?

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  1. 12 September, 09:52
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    100*60 (60minute=1hr) = 6000

    85*60 = 5100

    subtract 5100 from 6000 = 900

    Dennis would be at 900 yard in an hour
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