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October 20, 2014

October 20, 2014

Posted by **Lou** on Tuesday, January 20, 2009 at 3:47pm.

72 3/8inches tall, he wants 5 equally spaced shelves. Eacg self is 3/8 inche thick. tell him where to drill the holes.

- math -
**bobpursley**, Tuesday, January 20, 2009 at 4:20pmIf the first shelf is at the bottom,there will be 5 equally spaced slots, starting from the bottom. The slots (center to center will be then the height less one shelf thickness..think about that top board) slot thickness, center to center will be.

72 3/8 - 3/8= 72

then divide by five..14 2/5 inches.

So, bottom and top holes at 3/16 from then ends.

Then first the subsequent holes each 14 2/5 inches.

Check: top+ 5 book slots(center to center)=?

3/8+ 5*14 2/5 = you do it.

check my thinking. A drawing might help.

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