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A 20 m deep well with diameter 7 m is du...

A 20 m deep well with diameter 7 m is dug and the earth from digging is evenly spread out to form a platform 22 m by 14 m. Find the height of the platform.

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A 16 m deep well with diameter 3.5 m is dug up and the earth from it is spread evenly to form a platform 27.5 m by 7 m. Find the height of the platform.

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RD SHARMA ENGLISH-MENSURATION-III (SURFACE AREA AND VOLUME OF A RIGHT CIRCULAR CYLINDER)-All Questions
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  2. The trunk of a tree is cylindrical and its circumference is 176cm. ...

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  3. A 20 m deep well with diameter 7 m is dug and the earth from diggin...

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  4. A well with 14m diameter is dug 8m deep. The earth taken out of it ...

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  5. A cylindrical container with diameter of base 56cm contains suffici...

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  6. A rectangular sheet of paper 30 c m\ ×\ 18 c m can be transformed in...

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  7. The rain which falls on a roof 18m long and 16.5m wide is allowed t...

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  8. A piece of ductile metal is in the form of a cylinder of diameter 1...

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  9. Find the length of 13.2 kg of copper wire of diameter 4mm, when 1 c...

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  10. 2.2 cubic dm of brass is to be drawn into a cylindrical wire 0.25 c...

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  11. The difference between inside and outside surfaces of a cylindrical...

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  12. Water flows out through a circular pipe whose internal diameter is ...

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  13. A cylindrical tube, open at both ends, is made of metal. The intern...

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  14. From a tap of inner radius 0.75cm, water flows at the rate of 7m...

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  15. A cylindrical water tank of diameter 1.4m and height 2.1m is being ...

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  16. A rectangular sheet of paper 30 c m\ ×\ 18 c m can be transformed in...

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  17. How many litres of water flow out of a pipe having an area of cross...

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  18. A solid cylinder has a total surface area of 231\ c m^2dot Its curv...

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  19. Find the cost of sinking a tubewell 280m deep, having diameter 3...

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  20. Find the length of 13.2 kg of copper wire of diameter 4mm, when 1 c...

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