Question

what will be the cost of paper 2 metres wide, at Rs. 3.5 per metre for papering the walls of a room 21 metres long, 15 metres broad and 10 metres high.​

Answer 1

Answer:

Volume=21 x 15 x 10=3150$m^3$

Cost of 1 m of paper:

3.5/2=Rs.1.75

Cost need to pay:

3150 x 1.75=Rs.5512.5

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