Question

The length, breadth and height of a hall are 4 meters, 6 meters, and 4 meters. There are three doorsand four windows in the room. The measurement of each door is 1.5 meters X 1 meter and each window is 1.2 meters X 1 meter. How much it will cost for covering four walls by coloured paper at the rate of Rs. 70 per square meter.

Answer 1

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Answer 2

Answer:

Cost of covering paper =4949 sq m

length equal to 4 metre

breath equal to 6 metre

height equal to 4 metre

area is equal to 2 *(L +B )*h

=2 *10 *h

=20 *4

=80 sq m

Area of 1 door equal to 1.5*1 =1.5sq m

area of 3 doors equal to 3*1.5 =4.5 sq m

Area of 1 window equal to 1.2 *1 =1.2 sqm

area of 4 Windows equal to 1.2 *4=4.8 sqm

sum of areas of doors and windows is equal to (4 .5 sqm +4.8 sq m =9.3 sq m)

area of the wall - area of doors and windows= 80 .0-9.3 =70.7

cost for covering paper=70.7 *70=4949.0 sq m

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