Given: Volume of one box =0.7 m3
Volume of the store room =42×35×21
=30,870 m3 [1 Mark]
Number of boxes that can be stored in the room
=Volume of the roomVolume of one box=308700.7
=44,100
So, The number of cuboidal boxes that can be stored in the room is 44,100. [1 Mark]