a school has a hall which is 22 M long and 15.5 M broad a carpet is laid inside the hall leaving all around a margin of 75 cm from the walls find the area of the carpet and the area of the strip left uncovered if the weight of the carpet is 82 cm find its cost at the rate of 60 rupees per metre
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Hey there!
Total Area of the hall = Length × Width
= 22 × 15.5
= 341 m²
75cm = 75/100 m = 0.75m
∵ The margin is on both the sides we will subtract it twice,
Area of the carpet = Length × Width
= (22 - 0.75 - 0.75) × (15.5 - 0.75 - 0.75)
= 20.5 × 14 = 287 m²
Uncovered Area = Total Area - Area of the carpet
= 340 - 287 = 53m²
Total Carpet required = 287 m²
∴ Total Cost of carpet = 287 × 60 = 17220
HOPE IT HELPS ^_^
Total Area of the hall = Length × Width
= 22 × 15.5
= 341 m²
75cm = 75/100 m = 0.75m
∵ The margin is on both the sides we will subtract it twice,
Area of the carpet = Length × Width
= (22 - 0.75 - 0.75) × (15.5 - 0.75 - 0.75)
= 20.5 × 14 = 287 m²
Uncovered Area = Total Area - Area of the carpet
= 340 - 287 = 53m²
Total Carpet required = 287 m²
∴ Total Cost of carpet = 287 × 60 = 17220
HOPE IT HELPS ^_^
vinayak34:
But the cost you wrote is wrong in my answer sheet the answer is 21000
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