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A buket is made of chart paper in the form of cone open at both ends. The radii of its ends are 16 cm and 24 cm and its height is 6 cm .Find the cost of the paper used if one square metre of paper costsRs 0.70.

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NAGEEN PRAKASHAN ENGLISH-VOLUME AND SURFACE AREA OF SOLIDS-Exercise
  1. The heights of two cones are same and equal to 6cm .Their radii are 4c...

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  2. Find the volume of a cube whose diagonal is 17.32 metre.

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  3. The radius of a spherical ball of iron is 1.5 cm. It is melted and rec...

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  4. Water is being pumped out through a circular pipe whose internal di...

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  5. A hemispherical tank of radius 1.75 m is full of water. It is conne...

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  6. The curved surface of a cylinder is 100 sq cm .A wire of diameter 5mm ...

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  7. How many square metres of canvas will be required to make a conical te...

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  8. A rectangular sheet of tin 58 cmxx44cm is to be made into an open box ...

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  9. A solid metallic right circular cone of height 30cm and radius of the ...

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  10. One cubic metre of a certain metal weighing 900 Kg is melted and then...

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  11. about to only mathematics

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  12. A solid metal sphere is melted and smaller sperees of equal radii are ...

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  13. The radius of the ends of a bucket of height 24 cm are 15 cm and 5 cm....

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  14. The radii of the ends of a frustum of a cone 45 cm high are 28 cm a...

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  15. A buket is made of chart paper in the form of cone open at both ends. ...

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  16. A wooden right circular cone has a base of radius 3 cm and height 4 cm...

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  17. The lower portion of a haystaack is and inverted cone frustum and upp...

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  18. A Hollow cone is cut by a plane parallel to the base and upper portion...

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  19. A metallic right circular cone 20 cm high and whose vertical angle ...

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  20. The radius of the base of a right circular cone is rdot It is cut by a...

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