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(a) Three metallic spherical balls of ra...

(a) Three metallic spherical balls of radii 3 cm , 4cm and 5 cm are melted and reacast in to a big spherical ball find the radius of this big ball.
(b) Three metallic spheres are melted and recast in to a big solid sphere.Find the radius of big solid sphere if the diameter of three metalic sphres are 16 cm . 12 cm and 2 cm.

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The correct Answer is:
(a) 6cm (b) 9cm
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NAGEEN PRAKASHAN-VOLUME AND SURFACE AREA OF SOLIDS-Exercise
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  2. The base diameter and height of a metallic cone are 24cm and 6cm respe...

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  3. (a) Three metallic spherical balls of radii 3 cm , 4cm and 5 cm are me...

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  4. (a) How many balls of radius 1 cm can be drawn by melting metallic sph...

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  5. (a) How many spherical balls of diameter 12 cm can be construct ed by ...

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  6. A metallic sphere of radus 4 cm and a metallic cone of base readius 3 ...

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  7. How many solid speherical balls of radus 3.5 cm can be recast by melt...

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  8. There is some water in a cylindrical vessel of radus 6 cm a sphere of ...

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  9. A solid metallic ball is dropped in a cylindrical vessel which has som...

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  10. (i) The radius of a metallic sphere is 3 cm .It melted and recast in t...

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  11. How many metallic cones of radius 3 cm and height 13.5 cm are required...

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  12. The inner radius of a hemispherical cup is 9 cm and it is completely ...

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  13. Two metallic cones of equal radii 2.1 cm and heights 4.1 cm and 4.3 cm...

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

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

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

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

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

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

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

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