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Below are the drawings of cross sections...

Below are the drawings of cross sections of two different pipes used to fill swimming pools. Figure A is a combination of 2 pipes each having a radius of 8 cm. Figure B is a pipe having a radius of 15 cm. If the force of the flow of water coming out of the pipes is the same in both the cases, which will fill the swimming pool faster?

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NCERT EXEMPLAR-MENSURATION-EXERCISES
  1. A hollow garden roller of 42 cm diameter and length 152 cm is made of ...

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  2. Three cubes each of side 10 cm are joined end to end. Find the surface...

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  3. Below are the drawings of cross sections of two different pipes used t...

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  4. A swimming pool is 200 m by 50 m and has an average depth of 2 m. By t...

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  5. A housing society consisting of 5,500 people needs 100 L of water per ...

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  6. Metallic discs of radius 0.75 cm and thickness 0.2 cm are melted to ob...

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  7. The ratio of the radius and height of a cylinder is 2:3. If its volume...

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  8. External dimensions of a closed wooden box are in the ratio 5:4:3. If ...

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  9. The capacity of a closed cylindrical vessel of height 1m is 15.4 li...

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  10. What will happen to the volume of the cube, if its edge is (a) triple...

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  11. A rectangular sheet of dimensions 25 cm xx 7 cm is rotated about its l...

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  12. From a pipe of inner radius 0.75 cm, water flows at the rate of 7 m pe...

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  13. Four times the area of the curved surface of a cylinder is equal to 6 ...

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  14. A cylindrical tank has a radius of 154 cm. It is filled with water to ...

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  15. The length, breadth and height of a cuboidal reservoir is 7m, 6m an...

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  16. How many bricks of size 22 c m\ x\ 10 c m\ x\ 7c m are required to con...

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  17. A rectangular examination hall having seats for 500 candidates has to ...

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  18. The ratio between the curved surface area and the total surface area o...

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  19. A birthday cake has two tiers as shown in the figure below. Find the v...

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  20. Work out the surface area of following shapes

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