problem solving, math

If you have a 4 digit number and multiply it by 4, the product will be the number reversed. (abcd x 4= dcba) What is the number?

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asked by Laura
  1. http://www.mathhelpforum.com/math-help/number-theory/29638-reverse-digits-problem.html

    study that problem..

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  2. thanks, problem solved!

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    posted by Laura

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