Question

A floor is 40 m long and 15 m broad. It is covered with tiles, each measuring 60 cm
by 50 cm . Find the number of tiles required to cover the floor.
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Answer 1

Area of the floor = 40m × 15m

= 600 m²

Area of a tile = 60cm × 50cm

= 0.6m × 0.5m

= 0.3 m²

Number of tiles required = $\rm\frac{Area\: of\:the\: floor}{Area\:of \:a \:tile}$

= $\rm\frac{600 m^2}{0.3 m^2}$

= 200 tiles