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Math Help - Quick question

  1. #1
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    Quick question

    Quick question.

    I have $5 in mixed coins in a bag. The coins are either 5c, 10c or 50c and I have calculated the following probabilities.

    P(5c) = 4/8
    P(10c) = 3/8
    P(50c) = 1/8

    Any thoughts on how to go about finding how many of each coin there are?
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  2. #2
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    Re: Quick question

    Let the total number of coins be n. Then the number of 5c coins is 4n/8, etc.
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  3. #3
    Behold, the power of SARDINES!
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    Re: Quick question

    The probabilities give a ratio of coins to each other:

    4 nickles = $.20 3 dimes = $.30 and 1 Fifty cent is .50$

    add these up and you get $1.00 dollar. So you would need five of the above groups!
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