Saturday, September 11, 2010

Chocolates and roses

You have 21 chocolates and 91 roses, how many bouquets can you make without discarding neither a rose nor a chocolate. All the bouquets must have the same number of chocolates and roses for you.
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4 comments:

  2. 7 bouquet's of 13 roses and 3 chocolates each
    rowan

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  4. The formal solution should be:

    91 # 21 (mod x) (where # must be read congruency)

    so that:
    91-21 = k x => 70/k=x

    now we sould find a k, divisor of 70 such as:
    91 mod x = 0 and 21 mod x = 0
    k=10 e x=7 are out solution

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