Question #c260f

1 Answer
Feb 15, 2018

Height of the room is =6 mts

Explanation:

Given -
Length of the room =12m
Cost of preparing the wall=1.35 / m^2
Total cost of preparing the wall =340.20
Cost of matting the floor=0.85/ m^2
Total Cost of Matting the floor = 91.80
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Let Lenth of the floor be =l
Let the width of the floor be =b
Then, the area of floor =lxxb=lb

Cost of matting the floor=0.85/ m^2
Total Cost of Matting the floor =lb xx 0.85=0.85lb
Since length is 12mTotal Cost of Matting the floor =12 xx b xx 0.85 = 10.20b

10.20b=91.80
b=91.80/10.20=9 m

There are four walls.
Let the height of the wall be=h
Total area of wall is =[2(l+b)]xxh

=[2(12+9)]xxh=[2(21)]xxh=42h. m^2
Total cost of preparing the wall =42h xx 1.35=56.7h

56.7h=340.20
h=340.2/56.7=6 m

Height of the room is =6 mts