Recent activity in Analytical Aptitude

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1 answer
5
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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1 answer
17
For the year $2019$, which of the previous year’s calendar can be used?$2011$$2012$$2013$$2014$
1 votes
2 answers
18
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29
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36
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