Question

The Central Hall of school is 18m long and 12.5 metre wide a carpet is to be laid on the floor living a strip 50cm wide near the walls, uncovered. Find the area of carpet and also the uncovered portion?​

Answer 1

Solution:-

Portion uncovered = 50 cm = 0.5 m

Length of the carpet = 18 m - (0.5 m + 0.5 m) = 17 m

Breadth = 12.5 m - (0.5 m + 0.5 m) = 11.5 m

Area of the carpet = 17*11.5

= 195.5 sq m

Area of the hall = 18*12.5

= 225 sq m

Now area of the uncovered portion = area of the hall - area of the carpet

= 225 - 195.5 

Area of the uncovered portion = 29.5 sq m

Answer.

Step-by-step explanation:

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Answer 2

Answer:

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