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If a sphere of radius 2r has the s...

If a sphere of radius `2r` has the same volume as that of a cone with circular base of radius `r ,` then find the height of the cone.

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RD SHARMA ENGLISH-SURFACE AREA AND VOLUME OF A SPHERE -All Questions
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  9. The ratio of the total surface area of a sphere and a hemisphere of ...

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  10. A sphere and a cube are of the same height. The ratio of their volu...

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  11. The largest sphere is cut off from a cube of side 6cm. The volume o...

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  12. A cylindrical rod whose height is 8 times of its radius is melted and ...

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  13. If the ratio of volumes of two spheres is 1:8, then the ratio of th...

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  14. If the surface area of a sphere is 144pi\ m^2, then its volume (...

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  15. If a solid sphere of radius 10 cm is moulded into 8 spherical solid...

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  19. A sphere is placed inside a right circular cylinder so as to touch ...

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  20. A cone and a hemisphere have equal bases and equal volumes the rati...

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