Question

1. The front compound wall of a house is
decorated by wooden spheres of diameter 21
cm, placed on small supports. Eight such spheres are used for this purpose, and are to be painted silver. Each support is a cylinder of radius 1.5 cm and height 7 cm and is to be painted black. Find the cost
of paint required if silver paint costs 25 paise per cm and black paint costs 5 paise per cm?.


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Answer 1

Answer:

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