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Cows, horses and dogs (Posted on 2008-10-20) Difficulty: 2 of 5
I have cows, horses and dogs, a different prime number of each. If I multiply the number of cows (c) by the total of cows and horses (c+h), the product is 120 more than the number of dogs (d), that is: c*(c+h) = 120 + d.

How many of each do I have?

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Answer | Comment 11 of 12 |
The respective numbers of cows, horses and dogs are 11, 2 and 23.
  Posted by K Sengupta on 2008-11-20 00:41:13
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