Rajesh Balasubramanian

Consider a cuboid of dimension 6cm * 8cm * 5cm. Three pairs of opposite sides of this cube are painted Red, Green and Blue.  The largest surfaces have been painted Red, the smallest have been painted Blue. This cuboid is subsequently broken down into smaller cubes of dimension 1cm *

1. Five boys need to be allotted to 4 different rooms such that each boy is allotted a room and no room is empty. In how many ways can this be done?Given solutionLet the boys be A, B, C, D and E. Let the rooms be 101, 102, 103 and