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The cost of preparing the walls of ro...

The cost of preparing the walls of room 12m 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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The correct Answer is:
`6 m`
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S CHAND IIT JEE FOUNDATION-VOLUME AND SURFACE AREA OF A CUBE AND A CUBOID-UNIT TEST - 5
  1. The cost of preparing the walls of room 12m long at the rate of Rs....

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  2. If the longer side of a rectangle is doubled and the other is reduced ...

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  3. The wheel of a cycle covers 660 metres by making 500 revolutions. What...

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  4. A village having a population of 4000 requires 150 litres of water per...

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  5. In exchange of a square plot one of whose sides is 84m, a man wants...

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  6. What will be the perimeter of a rectangle if its length is 3 times its...

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  7. The area of a circle drawn with its diameter as the diagonal of a cube...

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  8. The perimeter of an equilateral triangle and a square are same, then (...

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  9. The quadrants shown in the figure .given here are each of diameter 12 ...

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  10. A plastic box 1.5 m long, 1.25 m wide and 65 cm deep is to be made. It...

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  11. A wooden box measures 20 cm by 10 cm by 9 cm. Thickness of wood is 1 c...

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  12. Front side wall of a house consists of a rectangle of 6 m xx 4 m surro...

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  13. If the sum of diagonals of a rhombus is 10 cm and its area is 12 cm^2,...

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  14. Four equal sized maximum circular plates are cut off from a square ...

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  15. The area of the given figure ABCDEF is :

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  16. The volume of a cube of 60 cm side is the same as that of a cuboid one...

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  17. The area of a square and a rectangular field is equal and is 900 m^2. ...

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  18. The sum of length, breadth and height of a cuboid is 12 cm long and it...

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  19. The sum of length, breadth and height of a room is 19 m. The length of...

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  20. Three cubes of metal whose edges are in the ratio 3:4:5 are melted ...

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  21. ABCD is a parallelogram with sides AB = 12 cm, BC= 10 cm and diagonal ...

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