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The cost of preparing the walls of a roo...

The cost of preparing the walls of a room 12 m long at the rate of Rs 1.35 per square metre is Rs 340.20 and the cost of matting the floor at 85 paise per square metre is Rs 91.80 find the height of the room.

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MODERN PUBLICATION-SURFACE AREAS AND VOLUMES-EXERCISE
  1. Three equal cubes are placed adjacently in a row. Find the ratio of to...

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  2. The momentum of a body is increased by 50% what is the percentage incr...

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  3. The cost of preparing the walls of a room 12 m long at the rate of Rs ...

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  4. The length and breadth of a room are in the ratio 4:3 and its height i...

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  5. A class room is 7 m long, 6.5 m wide and 4 m high. It has one door 3 m...

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  6. If V is the volume of a cuboid of dimensions a,b,c and S is its surfac...

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  7. The areas of three adjacent faces of a cuboid are x,y and z. if the vo...

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  8. Find the volume of the cuboid whose dimensions are length=26m, breadth...

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  9. Find the volume of the cuboid whose dimensions are length=24 m, breadt...

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  10. If the areas of three adjacent faces of a cuboid are 8cm^2,18cm^2 and ...

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  11. The breadth of a room is twice its height and is half of its length. T...

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  12. Two cubes, each of volume 512cm^3 are joined end to end. Find the surf...

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  13. How many planks of dimensions (5mxx25cmxx10cm) can be stored in a pit ...

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  14. How many bricks will be required to construct a wall 12 m three smalle...

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  15. Given that 1 cubic cm of marble weights 0.25 kg, the weight of marble ...

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  16. A river 3 m deep and 40 m wide is flowing at the rate of 2 km per hour...

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  17. How many persons can be accommondatd in a dining hall of dimensions (2...

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  18. The volumes of a cuboid is 1536cm^2. Its length is 16 m and its breadt...

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  19. In a shower, 5 cm of rain falls, find the volume of water that falls o...

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  20. A rectangular container, whose base is a square of side 5 cm, stands o...

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