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A metallic cone is melted and recast in ...

A metallic cone is melted and recast in to a cylinder of same radius and height 9 cm . Find the height of the cone.

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The correct Answer is:
27 cm
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NAGEEN PRAKASHAN-VOLUME AND SURFACE AREA OF SOLIDS-Exercise
  1. Threee metallic cones of radius 2cm and height 9cm are melted and reca...

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  2. Threee metallic cones of radius 2cm and height 9 cm are melted and rec...

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  3. A metallic cone is melted and recast in to a cylinder of same radius a...

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  4. A cone of height 15 cm is melted and reacast in to cylinder of same ba...

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  5. A cone of same height and same base radius is cut from a cylinder of h...

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  6. The heights of two cones are same and equal to 6cm .Their radii are 4c...

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  7. Find the volume of a cube whose diagonal is 17.32 metre.

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  8. The radius of a spherical ball of iron is 1.5 cm. It is melted and rec...

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  9. Water is being pumped out through a circular pipe whose internal di...

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  10. A hemispherical tank of radius 1.75 m is full of water. It is conne...

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  11. The curved surface of a cylinder is 100 sq cm .A wire of diameter 5mm ...

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  12. How many square metres of canvas will be required to make a conical te...

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  13. A rectangular sheet of tin 58 cmxx44cm is to be made into an open box ...

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  14. A solid metallic right circular cone of height 30cm and radius of the ...

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  15. One cubic metre of a certain metal weighing 900 Kg is melted and then...

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  16. A cone made of paper has height 3h and vertical angle 2 alpha It conta...

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  17. A solid metal sphere is melted and smaller spheres of equal radii are ...

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  18. The radius of the ends of a bucket of height 24 cm are 15 cm and 5 cm....

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  19. The radii of the ends of a frustum of a cone 45 cm high are 28 cm a...

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  20. A buket is made of chart paper in the form of cone open at both ends. ...

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