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The Rate for a 1.20 M Wide Carpet is Rs. 40 per Meter; Find the Cost of Covering a Hall 45 M Long and 32 M Wide with this Carpet. Also - Mathematics

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Question

The rate for a 1.20 m wide carpet is Rs. 40 per meter; find the cost of covering a hall 45 m long and 32 m wide with this carpet. Also, find the cost of carpeting the same hall if the carpet, 80 wide, is at Rs. 25. Per meter. 

Sum

Solution

First, we have to calculate the area of the hall.

Area = 45 x 32
        = 1440 m2

Cost = `40/1.20 xx 1440`

        = 48,000

We need to find the cost of carpeting of 80 cm = 0.8 m wide carpet if the rate of carpeting is Rs. 25. Per meter.

Then

Cost = `25/0.8 xx 1440`

        = Rs. 45,000

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Chapter 20: Area and Perimeter of Plane Figures - Exercise 20 (B) [Page 255]

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Selina Concise Mathematics [English] Class 9 ICSE
Chapter 20 Area and Perimeter of Plane Figures
Exercise 20 (B) | Q 13 | Page 255
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