A floor which measures 15 m×8 m is to be laid with tiles measuring 50 cm×25 cm. The number of tiles required is ___
A floor which measures 15 m into 8 m is to be laid with tiles measuring 50 cm by 25 cm. Find the number of tiles required. Further, if a carpet is laid on the floor so that a space of 1m exists between its edges and the edges of the floor, what fraction of the flow is uncovered?