Question 63
The length, breadth and height of a room are in the ratio of 4 : 3 : 2. The cost of carpeting the floor at ₹ 10 per square meter is ₹ 480. The height of the room is:
Solution
Let length,breath and height be 4x,3x and 2x respectively
Area of the floor=12$$x^{2}$$
Total cost of flooring=12$$x^{2}$$*10
12$$x^{2}$$*10=480
x=2
l=8 cm,b=6 cm and h=4 cm
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