Math Problems and Teasers

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Math Problems and Teasers

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#31

10-02-2003, 04:01

tatsak42

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#0159 (Alpine Robotics)

Join Date: Jan 2003

Location: Fort Collins

Posts: 163

tatsak42 is an unknown quantity at this point

I didn't think 0 counted.

Here's a problem from a competition i just did:
abcd is a 4 digit number between 1000 and 9999. When you multiply a 3 digit number (efg) and a 2 digit number (hi) and a 1 digit number (j) you get abcd. a,b,c,d,e,f,g,h,i, and j use the numbers 0-9 once and only once. What are the two combinations that work?
abcd=efg*hi*j

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