Question Details

Question No: 26

In a 6 x 4 grid (6 rows, 4 columns), 12 of the 24 squares are to be shaded so that there are two shaded squares in each row and three shaded squares in each column. Let N be the number of shadings with this property. Find the remainder when N is divided by 1000

Answer must be a floating-point or integer value and precision error less than 10^-6 is allowed.