Question

central hall of a school is 18m long and 12.5m wide .a carpet is to be laid on floor leaving strip 50cm wide near walls uncovered.find the area of the 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.

Answer 2

Answer:

29.5

Step-by-step explanation:

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