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Math Help - percentages

  1. #1
    uma
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    percentages

    A man travelled 420 kilometres in 12 hours .How much time would he have taken to cover 630 kilometres if he travelled non-stop at the same speed?
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  2. #2
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    \frac{630*12}{420}=18 hours
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  3. #3
    A riddle wrapped in an enigma
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    Quote Originally Posted by uma View Post
    A man travelled 420 kilometres in 12 hours .How much time would he have taken to cover 630 kilometres if he travelled non-stop at the same speed?
    Hi uma,

    Not sure what your question has to do with percentages, but.....

    Remember that 'distance = rate x time', so 'rate = distance / time'

    Rate = 420/12 = 35 km/hr

    At this rate, to travel 630 km it would take 630/35 = 18 hours.
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