Question

A rectangular floor of area 75.6 m2 is going to be tiled. Each tile is rectangular, and has an area of 400 cm2. An exact number of tiles can be put into the space. How many tiles will be needed?

Answer 1

400 cm^2 * 1 m/100 cm * 1 m/100 cm = 400/10,000 = 4/100 = 0.04m^2 per tile
0.04 n = 75.6
n = 1890 tiles