A rectangular floor that has the length L = 9m and the width l = 3m must be covered with tiles with square shape and length of the side = 30 cm . Which is the necessary number of tiles ?
First we need to calculate the area of the floor
Since it is a rectangulal floor, then the area to be covered is L*I=...
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Since two units are given we must first convert the different units into one uniform unit. So,
30cm = 30/100 m = 0.3m
Next in order to find out the number of tiles required to cover the entire floor, we must calculate the area of the entire floor. We can do this by multiplying L x l = 27 square metres.
Next we have to find the area of the square tile. We do this by multiplying its length and breadth:
.3 x .3 = .9 sq.ms.
To find out the number of tiles required to cover the entire floor we have to divide the area of the entire floor 27 sq.ms. by the area of one tile .9 sq.ms
27 / .9 = 270 / 9 = 300 tiles.
Answer = 300 tiles