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A well has to be dug out that is to b...

A well has to be dug out that is to be 22.5 m deep and of diameter 7m. Find the cost of plastering the inner curved surface at Rs 3 per sq. meter. (a) Rs 1465      (b) Rs 1475    (c) Rs 1485     (d) Rs 1495

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RS AGGARWAL-VOLUME AND SURFACE AREAS-All Questions
  1. Three rectangles A1,\ A2 and A3 have the same area. Their length...

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  2. The volume of a right circular cylinder whose curved surface area i...

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  3. A well has to be dug out that is to be 22.5 m deep and of diameter ...

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  4. The radius and height of a cylinder are in the ratio 5 : 7 and its ...

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  5. The height of a right circular cylinder is 14 cm and its curved sur...

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  6. A closed metallic cylindrical box is 1.25 m high and its base radiu...

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  7. The curved surface area of a right circular cylinder of base radius...

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  8. The ratio of total surface area to lateral surface area of a cylind...

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  9. Two cans have the same height equal to 21 cm. One can is cylindrica...

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  10. The diameter of the base of a cylindrical drum is 35 dm and the hei...

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  11. The radius of the cylinder is half its height and area of the inner...

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  12. The sum of the radius of the base and height of a solid cylinder is...

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  13. The curved surface area of a cylindrical pillar is 264 m2 and its v...

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  14. The height of a right circular cylinder is 6 m. If three times the ...

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  15. The height of a closed cylinder of given volume and the minimum sur...

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  16. If the radius of the base of a right circular cylinder is halved, k...

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  17. The radii of the bases of two cylinders are in the ratio 3 : 4 and ...

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  18. If the height of a cylinder is increased by 15 percent and the radi...

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  19. If two cylinders of equal volumes have their heights in the ratio 2...

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  20. X and Y are two cylinders of the same height. The base of X has dia...

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