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500 persons have to dip in a rectangu...

500 persons have to dip in a rectangular tank which is 80 m long and 50 m broad. What is the rise in the level of water in the tank, if the average displacement of water by a person is `0. 04\ m^3` ?

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The correct Answer is:
0.5 cm
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OSWAL PUBLICATION-SURFACE AREAS AND VOLUMES -NCERT EXEMPLAR (EXERCISE-13.4)
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  7. A factory manufacture 120000 pencils daily. The pencils are cylindri...

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  8. Water is flowing at the rate of 15 km/hour through a pipe of diameter ...

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  9. A solid iron rectangular block of dimensions 4.4m, 2.6m and 1m is cast...

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  10. 500 persons have to dip in a rectangular tank which is 80 m long an...

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  11. Metal spheres, each of radius 2 cm, are packed into a rectangular b...

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  12. A milk container of height 16 cm is made of metal sheet in the form...

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  13. A cylindrical bucket, 32 cm high and with radius of base 18 cm, is ...

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  16. A hemispherical bowl of internal radius 9 cm is full of liquid . The ...

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  17. A solid right circular cone of height 120 cm and radius 60 cm is place...

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  18. A water flows through a cylindrical pipe, whose inner radius is 1 cm...

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  19. The rain water from a roof af dimensions 22 m xx 20 m drains into ...

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  20. A pen stand made of wood is in the shape of a cuboid with four ...

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