Paul, I believe Bruce got it. Here's why: Find the common denominator, in this case, twelfths. So you now have 4/12th and 3/12 respectively of black, totaling 7/12 of the cloth in black. That leaves 5/12th of gray. 5/12 = 8yds, so 1/12 = 8/5 (or 1.6 yds). So if 1/12 is 1.6yds, 12/12 or 1 (the whole thing) is 12 * 1.6 = 19.2 yds. William R. Monroe On Mon, Sep 20, 2010 at 6:44 PM, Paul T Williams < pwilliams4 at unlnotes.unl.edu> wrote: > here it is am I'm having a brain fart: > > A bolt of cloth is colored as follows: 1/3 and 1/4th of it are black, and > the remaining 8 yards are gray. How long is the bolt of cloth? > > Some of you can do this in a heartbeat, but I'm forgetting my simple > algebra. > > Thanks > Paul > Ps: the answer is not how much to order for a bench cover! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100920/14ac4c70/attachment.htm>
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