Question

a floor of length 12 m and breath 10m has to be paved with tiles of length 6cm and breath 5cm how many tiles are required

Answer 1

Step-by-step explanation:

$length \: of \: floor \: = 12m = 120cm \\ breadth \: of \: floor \: = 10m = 100cm \\ area\: of \: floor \: = l \times b \\ = (120 \times 100)cm \\ = 12000m \\ length \: of \: tiles \: = 6cm \\ breadth \: of \: tiles = 5cm \\ area \: of \: tiles = l \times b\\ = (6 \times 5)cm \\ = 30cm \\ no.s \: of \: tiles \: required = \frac{perimeter \: of \: tiles}{perimeter \: of \: room} \\ = \frac{30cm}{12000cm} = 400 \\ 400 \: tiles \: needed(ans)$

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Answer 2

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