Question

dining-hall of a hotel is 75 m long, 60 m
broad and 16 m high. It has five-doors 4 m by
3 m each and four windows 3 m by 1.6 m each.
Find the cost of:
(i) papering its walls at the rate of
12 per m2;
(ii) carpeting its floor at the rate of
25 per m2

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please help me it is very urgent .​

Answer 1

Two walls will have the dimensions 75m and 16m. Other two walls will have the dimensions, 60m and 16m.

Each wall is in the shape of a rectangle.

Hence, area of the four walls of the dining hall

= 2( 75 x 16) + 2( 60 × 16 )

= 2400 + 1920

= 4320m²

Subtracting the area of door and windows from the walls, we get

= 4320-5(4 x 3) - 4( 3 × 1.6)

= 4320-60 - 19.2

= 4240.8m²

Cost of papering the walls at Rs 12 per m²

= 12 x 4240.8

= Rs. 50889.6

Answer 2

Step-by-step explanation:

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