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Deck Building

Math brain teasers require computations to solve.

 

Puzzle ID:#23957
Fun:*** (2.17)
Difficulty:*** (2.44)
Category:Math
Submitted By:drussel3*us****
Corrected By:tsimkin

 

 

 



Ralph wanted to buy all the lumber for his deck in one trip, and not have to go back to the lumberyard 45 miles away. He didn't want to buy more than he needed because wood is expensive and he had nowhere to store it.

Ralph's plans for his deck called for standard 2x4 - 8 foot long pine boards with 3/8" spacing between each board for drainage. His deck was to be 8 feet deep by 30 feet long. The last board farthest from the doorwall could be cut lengthwise to fit if necessary, thus giving him a smaller width board at the end where no one is likely to see it.

How many 2x4's did he buy?

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