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A room is 8.5 m long, 6.5 m broad and 3....

A room is 8.5 m long, 6.5 m broad and 3.4 m high. It has two doors, each measuring (1.5 m by 1 m) and two windows, each measuring (2 m by 1 m). Find the cost of painting its four walls at 160 per `m^2`.

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The correct Answer is:
Rs.15200
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A room is 8.5m long,6.5m broad and 3.4m high.It has two doors,each measuring (1.5m by 1m) and two windows,each measuring (2m by 1m). Find the cost of painting its four walls at 160 per m^(2) .

A room is 7 m long and 5 m broad. It has one door measuring (2 m by 1.5 m) and two windows, each measuring (1.5 m byl m). The cost of painting the walls of the room at Rs. 80 per m^(2) is Rs. 5280. Find the height of the room.

A room is 9 m long, 8 m broad and 6.5 m high. It has one door of dimensions (2 mxx1.5 m) and four windows each of dimensions (1.5 mxx1 m) . Find the cost of whitewashing the walls at Rs. 25 per m^(2) .

A room is 7 metres long and 5 metres broad.It has one door measuring 2m by 1.5m and two windows,each measuring 1.5m by 1m. The cost of painting the walls at Rs.12.50 per squre metre is Rs.825. Find the height of the room.

A room is 16m long, 9 m wide and 3m high. If has two doors, each of dimensions (2m xx 1.5 m) and the three windows, each of dimensions (1.6 m xx 75 cm) . Find the cost of distempering the walls of the room from inside at the rate of Rs 50 per square metre.

A room is 9 m by 8 m by 6.5 m. It has one door of dimensions (2 m xx 1.5 m) and four windows each of dimensions (1.5 mxx1 m) . Find the cost of painting the walls at 50 per m.

A room is 9 m long, 8 m broad and 6.5 m high. It has one door of dimensions 2mxx1. 5 m and three windows each of dimensions 1. 5 mxx1mdot Find the cost of white washing the walls at Rs 3.80 per square metre.

The length, breadth and height of a hall are 16 m, 10 m and 6 m respectively. It has two doors measuring 2 m times 1.5 m each and four windows measuring 2 m times 2 m each. Find the cost of white washing all the four walls and the ceiling of the hall at the rate of Rs. 5 per m^(2) .

The length, breadth and height of a room are 7.5 m, 4.5 m and 3.0 m respectively. There is a door of measure 2.0 m xx 1.0 m and also 2 windows each of measure 1.2 m and 0.75 m. Find the cost of white washing its walls and roof at the rate of Rs. 1.20 per square metre.

RS AGGARWAL-MENSURATION-EXERCISE 20A
  1. Find the area of the rectangle whose dimensions are:(i) length = 24.5 ...

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  2. Find the area of a rectangular plot, one side of which is 48 m and its...

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  3. The sides of a rectangular park are in the ratio 4:3. If its area is 1...

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  4. The area of a rectangular field is 3584 m^(2) and its length is 64 m. ...

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  5. A verandah is 40 m long and 15 m broad. It is to be paved with stones,...

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  6. Find the cost of carpeting a room 13 m by 9 m with a carpet of width 7...

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  7. The cost of carpeting a room 15 m long with a carpet of width 75 cm at...

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  8. The length and breadth of a rectangular piece of land are in the ratio...

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  9. Find the length of the largest pole that can be placed in a hall 10 m ...

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  10. Find the area of a square each of whose sides measures 8.5 m.

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  11. Find the area of the square, the length of whose diagonal is(i) 72 cm,...

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  12. The area of a square is 16200 m^(2). Find the length of its diagonal.

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  13. The area of a square field is (1)/(2) hectare. Find the length of its ...

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  14. The area of a square plot is 6084 m sq.. Find the length of the wire w...

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  15. A wire is in the shape of a square of side 10 cm. If the wire is reben...

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  16. A godown is 50 m long, 40 m broad and 10 m high. Find the cost of whit...

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  17. The area of the 4 walls of a room is 168 m^(2). The breadth and height...

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  18. The area of the 4 walls of a room is 77 m^(2). The length and breadth ...

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  19. The area of four walls of a room is 120 m^(2) . If the length of the r...

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  20. A room is 8.5 m long, 6.5 m broad and 3.4 m high. It has two doors, ea...

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