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Math Help - General Math Question

  1. #1
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    Mar 2012
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    london
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    General Math Question

    Hi Guys,

    I simply wanted to ask, I have a large file that I want to
    download the size of 4,375,272 at the speed of 160kb/sec. How can i find out how
    long it will take in HH:MM:SS?

    I have tried the following:
    $a =
    4,375,272
    $b = 160kb/sec

    $totalsecs = $a * $b =
    700043520
    $totalmins =$totalsecs / 60 = 11667392
    ... not sure where to go
    from here?
    Can somebody help me find a way for me to find out how long it
    will tak to download?
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  2. #2
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    Dec 2011
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    Re: General Math Question

    I take it kb/sec stands for kilobit/second and that the file size is given in bytes? When you have both the file size and data rate in the same units, you get the time it takes to download the whole file in seconds:

    $download_time = $file_size / $data_rate

    $hours = floor($download_time / 3600)
    $remainder = $download_time - $hours * 3600
    $minutes = floor($remainder / 60)
    $seconds = $remainder - $minutes * 60
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  3. #3
    Newbie
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    Mar 2012
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    london
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    Re: General Math Question

    Hi, can you explain your method or give reason why you have chose 3600 hrs? as it is essentially 150 days.
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  4. #4
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    Re: General Math Question

    3600 seconds = 1 hour
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