Mathematics, 17.05.2021 17:50, orgaprince
A room is thrice as long as the breadth. It contains 270m^3 of air and the cost of painting its four walls at Rs 15 per m^2 is Rs. 3600, find the cost of carpeting the floor at Rs. 98 per m^2.
Answers: 1
at the rate of 
![\Rightarrow 240=2[hl+hb]\\\Rightarrow 120=h[l+b]\\\Rightarrow 120=4bh\quad [\text{length is thrice of width}]\\\Rightarrow 30=bh\qua \ldots(i)](/tpl/images/1328/3241/a793a.png)
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A room is thrice as long as the breadth. It contains 270m^3 of air and the cost of painting its four...
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