Question

is
21.
The dimensions of a room are 6 mx 4 m x 4.5 m. It has to be papered with
wallpaper 75 cm wide. What length of wallpaper is required? Also find the cost
of wallpaper at the rate of 4.75 per m.
/​

Answer 1

Step-by-step explanation:

(width of the wall + repeat) x height wall = X m2

Answer 2

Answer:

length=144m, rate=513rs

Step-by-step explanation:

dimensions of a room=6m ×4m ×4.5m

therefore area=108m²

width of wallpaper=75cm=0.75m

area of wallpaper=area of room

L×B=L×B×H

L×0.75m=108m²

L=144m

so length of wallpaer should be 144m

cost of wallpaper will be 108×4.75

=Rs 513.