Question

5. The length of a hall is 8 m more than its breadth.
If the perimeter of the hall is 40 m, find the cost
of laying a carpet at the cost of 12 per sq. m.
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Answer 1

Answer:

1008

Step-by-step explanation:

Let the breadth of the hall be x m

Then, length of the hall= (x+8)m

Perimeter of the hall= 40 m

i.e. 2(length+breadth)= 40

2(x+8+x)= 40

2(2x+8)= 40

4x+16=40

4x=24

x=6

Breadth =6 and Length=6+8=14

Now, area of hall = length*breadth

=14*6=84 sq. m

Cost of laying carpet = Area of hall*cost of carpet per sq. m = 84*12=1008

The cost of laying the carpet is 1008.