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Mathematics, 20.11.2020 06:10 rafaellazaro60pcw3w5

In a train yard there are 4 tank cars, 12 boxcars and 7 flat cars. How many ways can a train be made up consisting of 2 tank cars. 5 box cars and 3 flat cars?

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In a train yard there are 4 tank cars, 12 boxcars and 7 flat cars. How many ways can a train be made...
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