Question

· A room 6m by 4m by 5m high to be prepared with wall paper 75cm wide is required?also find the cost of the paper @of 30 rs per m​.

Answer 1

The cost of the paper @of Rs. 30 per meter is  Rs. 4000.

Step-by-step explanation:

The dimensions of the room:

Length, l = 6 m

Breadth, b = 4 m

Height, h = 5 m

Since we know that wallpaper is covered only on the walls but not on the floor and ceiling, so we will find the area of 4 walls of the room by using the dimensions.

∴ Area of 4 walls = 2×h×[l + b] = 2 × 5 × [6 + 4] = 100 m²

Now,

The width of the wallpaper to be used to cover the walls is given as 75 cm = 0.75 m

∴ The length of the wallpaper will be = [Area] / [Width] = $\frac{100 m^2}{0.75 m}$ = 133.33 m

Thus,

The total cost of the wallpaper to be used @Rs. 30 per meter is,

= 133.33 m × Rs. 30

= 3999.9

≈ Rs. 4000

----------------------------------------------------------------------------------------

Also View:

A room is 8m long and 6m wide . its floor is to be covered with rectangular tiles of sides 25cm by 20cm. how many tiles will be required . find the cost of these tiles at rs25 per tile?

https://brainly.in/question/2189140

The internal dimensions of a rectangular room are 6m,5m,and 3.5m. it has two doors of size 1.2m by 2m and three windows of size 1m by 1.9m.The walls of the room are to be papered with a wallpaper of width 70cm. find the cost of the paper at the rate of 6.50 per metre .

https://brainly.in/question/1827721