Question

find the cost of carpeting a room 15m long with a carpet of 75cm at the rateof rs 105 per m​

Answer 1

Step-by-step explanation:

Given,

a carpet length=15m

width of carpet=75m

cost of carpet=80Rs. p.m.

Total cost=19,200 Rs.

also, given, to find out the width of the room.

Let, the width of the room be 'b' mt.

∴ Area of the room=L×b=15×b=15bm

2

(∵ Area of □le=L×b)

Length of the carpet=

cost per mt

total cost

=

80

19200

Length of the carpet=240mt

as given 'W' of the carpet=75m

Area of the carpet=240×75=18000

Area of the room=Area of carpet

⇒15b=18000

b=

15

18000

=1200mt

∴ The width of the room=1200mt or 12cm.

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