Question

How many tiles, having 100 c.m length and 90 c.m width will be required to pave a corridor which is 60 m long and 6 m broad ?

Answer 1

Length of Tile = 100 cm
Width of Tile = 90 cm

Area of Tile = 100 × 90
= 9000 cm²

Length of corridor = 60 m = 6000 cm
Width of corridor = 6 m = 600 cm

Area of corridor = 6000 × 600
= 3600000 cm²

No. of Tiles = Area of Corridor /Area of Tile

= 3600000 / 9000

= 400

So the No. of Tiles = 400

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Answer 2

$No. of tiles required = \frac{Area of corridor}{Area of 1 tile} \\= \frac{6000(600)}{100(90)} \\= 400 tiles.\\Therefore, 400 tiles will be required to pave the corridor.$