Math, asked by himanshisahu333, 5 months ago

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EXERCISE 13.1
A plastic box 1.5 m long, 1.25 m wide and 65 cm deep is to be made. It is to be
the top. Ignoring the thickness of the plastic sheet, determine:
The area of the sheet required for making the box.
m) The cost of sheet for it, if a sheet measuring Im' costs Rs 20.
2. The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find the
cost of white washing the walls of the room and the ceiling at the rate of
Rs 7.50 per m
3. The floor of a rectangular hall has a perimeter 250 m. If the cost of painting the four
walls at the rate of Rs 10 per m' is Rs 15000, find the height of the hall.
[Hint: Area of the four walls - Lateral surface area.)
4. The paint in a certain container is sufficient to paint an area equal to 9.375 m. How
many bricks of dimensions 22.5 cm * 10 cm x 7.5 cm can be painted out of this
container?
5. A cubical box has each edge 10 em and another cuboidal box is 12.5 cm long, 10 cm​

Answers

Answered by Anonymous
10

(●_●) ......

Such a Big Question You have not done your Homework Right

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