Question

The length of a room is 50% more than its breadth. The cost of carpenting the room at the rate of ₹38.50 m² is ₹924 and the cost of papering the walls is ₹3.30 m² is ₹214.50, If the room has one door of dimensions 1m × 2m and two windows each of dimensions 1m × 1.5m, find the dimensions of the room. ​




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Answer 1

Answer:

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Let length (l)=2xx+1=2(x)3

Let breadth  (b)=x

Area of floor =3850924×100

l×b=24

23x×x=24⇒x2=324×2

23x2=24                                          x=4

Area of walls =1320×550100

2(l+b)h=240

100×h=2240

h=12 m

l=23×4=6 cm

b=x=4 cm

Answer 2

height = 12 m

length = 3/2 × 4=6 cm

breadth = x=4 cm