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How many bricks will be required to construct a wall 12 m three smaller cubes. If the edges of the two smaller cubes are 6 cm and 8 cm, find the edge of the third smaller cube.

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MODERN PUBLICATION-SURFACE AREAS AND VOLUMES-EXERCISE
  1. Two cubes, each of volume 512cm^3 are joined end to end. Find the surf...

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

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

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

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

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

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

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

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

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  10. A field is in the form of a rectangle of length 18 m and width 15 m. A...

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  11. A rectangular tank is 80 m long and 25 m braod water flows into it thr...

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  12. Find the curved surface area of a right circular cylinder at height 21...

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  13. The diameter of a cylinder is 28 cm and its height is 40 cm. find the ...

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  14. A solid cylinder has total surface area of 462 cm^2. Its curved surfac...

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  15. Find the ratio between the total surface area of a cylinder to its cur...

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  16. The total surface area of a hollow metal cylinder, open at both ends, ...

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  17. The diameter of a roller 1.5 m long is 84 cm. If it takes 100 revoluti...

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  18. A cylindrical vessel, without lid, has to be tin-coated on its both si...

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  19. 50 circular plates each of radius 7 cm and 1 thickness 1/2 cm are plac...

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  20. The area of the curved surface of a cylinder is 4400 sq.cm and the cir...

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