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A room measuring 7 m by 6m is to be covered by square tiles of side 21cm.Find the number of tiles required to cover the floor.If the cost of one tile is ru.40,find the total cost of tiles? |
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Answer» ong>Answer: Given :- A room measuring 7 m by 6m is to be covered by square tiles of side 21cm. To Find :- number of tiles required to cover the floor.If the cost of one tile is ru.40,find the TOTAL cost of tiles? Solution :- 7 m = 700 cm 6 m = 600 cm Area of room = l × b => 700 × 600 => 420000 cm² Area of tile = side² => (21)² => 441 cm² No. of tiles = 420000/441 No. of tiles = 952 Cost = No. of tiles × Rate Cost = 952 × 40 Cost = 38080 |
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