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A wooden toy is in the form of a cone su...

A wooden toy is in the form of a cone surmounted by a hemisphere. The diameter of the base of the cone is 6 cm. and its height is 4 cm. Find the cost of painting the toy at the rate of Rs. 50 per `1000cm^2`.

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MBD-Surface Areas and Volumes-Exercise
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  7. Find the cost of digging a cuboidal pit 8 m long, 6 m broad and 3 m de...

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  8. The capacity of a cuboidal tank is 50000 litres of water. Find the bre...

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  12. A solid cube of side 12 cm is cut into eight cubes of equal volume. Wh...

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  13. A river 3 m deep and 40 m wide is flowing at the rate of 2 km per hour...

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  14. Find the length of a wooden plank of width 2.5 m, thickness 0.025m and...

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  15. The rainfall on a certain day was 6 cm. How many litres of water fell ...

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  16. A solid rectangular piece of iron measures 2.5 m by 1.2 m by 1 cm. Fin...

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  17. The dimensions of a metal block are 4.5 m by 1.5 m by 27 m. It is melt...

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  18. The length, breadth and thickness of a metallic cuboid are 28 cm, 14 c...

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  19. The circumference of the base of a cylindrical vessel is 132 cm and it...

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  20. The inner diameter of a cylindrical wooden pipe is 24 cm and its out d...

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