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# The radii of the circular ends of a solid frustum of a cone are 33 cm and 27 cm, and its slant height is 10 cm. find its capacity and total surface area. Take .ORA bucket made up of a metal sheet is in the form of frustum of a cone. Its depth is 24 cm and the diameters of the top and bottom are 30 cm and 10cm respectively. Find the cost of milk which can completely fill the bucket at the rate of Rs. 20 per litre and the cost of metal sheet used if it costs Rs. 10 per 100

Asked by Topperlearning User 4th June 2014, 1:23 PM

Here R = 33 cm, r = 27 cm and l = 10 cm

Capacity of the frustum

Total surface area =

OR

R = 15 cm, r = 5 cm and h = 24 cm

(i) Volume of bucket =

Cost of milk = Rs. (8.164 20) = Rs. 163.28

(ii) Total surface area of the bucket

Cost of sheet =

Answered by Expert 4th June 2014, 3:23 PM
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