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Recent questions tagged counting-figure

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GATE Civil 2023 Set 2 | GA Question: 3
In how many ways can cells in a $3 \times 3 $ grid be shaded, such that each row and each column have exactly one shaded cell? An example of one valid shading is shown. $2$ $9$ $3$ $6$
In how many ways can cells in a $3 \times 3 $ grid be shaded, such that each row and each column have exactly one shaded cell? An example of one valid shading is shown. ...
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