SOLUTION: In a train yard there are 4 tanker cars, 12 boxcars, and 7 flatcars available for a train. In how many ways can a train be made up consisting of 2 tanker cars, 5 boxcars, and 3 fl

Question 1150202: In a train yard there are 4 tanker cars, 12 boxcars, and 7 flatcars available for a train. In how many
ways can a train be made up consisting of 2 tanker cars, 5 boxcars, and 3 flatcars?

Answer by ikleyn(52778) (Show Source): You can put this solution on YOUR website!
.


It is more than obvious:


    in  ..  ways.

--------------

On Combinations and how to calculate them, see introductory lessons
    - Introduction to Combinations
    - PROOF of the formula on the number of Combinations
    - Problems on Combinations
    - OVERVIEW of lessons on Permutations and Combinations
in this site.

Also, you have this free of charge online textbook in ALGEBRA-II in this site
    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic "Combinatorics: Combinations and permutations".

Save the link to this textbook together with its description

Free of charge online textbook in ALGEBRA-II
https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson

into your archive and use when it is needed.

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