Civil Engineering > GATE 2023 SET-2 > Combinatorics
In how many ways can cells in a 3x3 grid be shaded, such that each row and each column have exactly one shaded cell? An example of one valid shading is shown.
Correct : d
Similar Questions
Three husband-wife pairs are to be seated at a circular table that has six identical chairs. Seating arrangements are defined only by the relative position of t...
The matrix P is the inverse of a matrix Q. If I denotes the identity matrix, which one of the following options is correct?
The number of parameters in the univariate exponential and Gaussian distributions, respectively, are
Total Unique Visitors
Loading......