22-12-2016
Mathematics

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A grid with 3 rows and 52 columns is tiled with 78 identical 2x1 dominoes. How many ways can this be done such that exactly two of the dominoes are vertical?

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AndreanaL14 AndreanaL14

31-12-2016

A grid with 3 rows and 52 columns is tiled with 78 identical 2x1 dominoes. How many ways can this be done such that exactly two of the dominoes are vertical?
There are 39 ways that exactly two of the dominoes are vertical.

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