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The soil dug out from a plot of land of ...

The soil dug out from a plot of land of length 50m and breadth 40m to a depth of 7m was evenly spread out over a plot of land of size `200mxx150m`.Find the increased height of the second plot of land as a result of the spreading out of the soil.

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R G PUBLICATION-SURFACE AREA AND VOLUMES-EXERCISE
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  6. A hemispherical depression is cut out from one face of a cubical woode...

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  17. A solid consisting of a right circular cone of height 120cm and radius...

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  18. A spherical glass vessel has a cylindrical neck 8 cm long,2 cm in diam...

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  19. A metallic sphere of radius 4.2 cm is melted and recast into the shape...

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  20. Metallic sphere of radii 6 cm,8 cm and 10 cm respectively are melted t...

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  21. A 20m deep well with diameter 7m is dug and the earth from digging is ...

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