Question

find the cost of papering the four walls of a room 16m long 12m broad and 8m high, with paper 2m wide at Rs 50 per meter

Answer 1

As the room is a cuboid ,
so, we have to find the lateral surface area of the cuboid i.e,four walls of the room,
so,
we know that lateral surface area of a cuboid(in this case a room) =2h(l+b)
Length (l)=16m
Breadth(b)=12m
Height(h)=8m
by applying the formula we get,
2*8(16+12)
= 16*28
=448 m^2
now, it is given that to paper the wall with 2m wide paper
so,
448÷2=224
papering at Rs. 50 per metre
so,224×50= Rs.11,200

Answer 2

Answer:

area of 4 walls=2h(l+b)

=2*8(16+12)=448

wide is 2m

so we get

448÷2=224

Step-by-step explanation:

rate of papering =50/m^2

cost of papering =50*224=11200