Posted by Anonymous on Monday, June 7, 2010 at 9:23am.
If the length of the board is 5 feet, we can immediately tell that it should be cut into two pieces, one 3 feet, and the other 2.
If the length is 19 feet, we can increase each piece by the proportion of 19/5, thus the lengths are:
3*(19/5) and 2*(19/5) respectively.
Can you take it from here?
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