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Math Help - Playing with time and units

  1. #1
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    Playing with time and units

    I was trying to resolve this math quiz:


    A centimeter is one hundredth of a metre. So a ‘centifortnight’ would be one hundredth of a fortnight.

    The length of a ‘centifortnight’ would be closest to how many hours.


    I did my calculations and got this:
    There are 24 hours in one day, 7 days in one week. Therefore, 2 weeks is equal to 2 x 7 x 24 = 336 hours/ 100 = 3.36 hours.


    But I saw the following this( 12,096 seconds = 1 centifortnight. 2.4 hours )on a website and I think 2.4 hours is wrong but the 12,096 seconds is right.Anyone agrees with me?
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  2. #2
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    e^(i*pi)'s Avatar
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    Re: Playing with time and units

    12,096 s \times \dfrac{1 hr}{3600s} = 3.36 hr. They calculated the number of seconds correctly but then didn't convert it properly.

    I'm a bit concerned about 3.36 hours figure. The question implies that you should round your answer to the nearest integer
    Last edited by e^(i*pi); July 14th 2011 at 08:02 AM. Reason: typo
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