SOLUTION: A set of childrens blocks contain three shapes: bars, flats, and cubes. There are 3 times as many bars as cubes, and 20 fewer flats than bars. If there are 400 blocks in all, how m
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Question 389924: A set of childrens blocks contain three shapes: bars, flats, and cubes. There are 3 times as many bars as cubes, and 20 fewer flats than bars. If there are 400 blocks in all, how many bars are there ? Answer by rfer(16322) (Show Source):
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