Question

A room is 7.5 m long, 5.5 m broad and 5 m high. What will be the expenditure in covering the walls by paper 40 cm broad at the rate of 80 paise per metre ?


foll ow please​

Answer 1

Answer:

Area of four walls = 2.5×(7.5+5.5)

=130m

2

Area of required papers = 130m

2

Breadth of paper = 40 cm =

100

40

m=0.4 m

Area = l×b

130=l×0.4

length =

4

130

=325m

Cost of paper at 80 p per meter = 325×0.80

=Rs260

Answer 2

Answer:

here's your answer mate

I hope it will help you