Question

The length of a room is 50 per cent more than its breadth. The cost of carpeting the room at the rate of ₹38.50m² is ₹924 and the cost of painting the walls at the rate of ₹5.50 per m² is ₹1,320. Find the dimensions of the room.
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Answer 1

Answer:

Let length (l)=

2x

x+1

=

2(x)

3

Let breadth (b)=x

Area of floor =

3850

924×100

l×b=24

2

3x

×x=24⇒x

2

=

3

24×2

2

3

x

2

=24 x=4

Area of walls =1320×

550

100

2(l+b)h=240

100×h=

2

240

h=12 m

l=

2

3

×4=6 cm

b=x=4 cm

Step-by-step explanation:

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