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6. It costs Rs. 2200 to paint the inner curved surface of a cylindrical vessel JO m deep. If the cost of painting is at the rate of r 20 per m2, find (i) inner curved surface area o( the vessel, (il,j radius of the base, (iii) capacity of the vessel.

6. It costs Rs. 2200 to paint the inner curved surface of a
cylindrical vessel JO m deep. If the cost of painting is at the rate of r 20 per m2, find
(i) inner curved surface area o( the vessel,
(il,j radius of the base,
(iii) capacity of the vessel.

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 8741 Points
6 months ago
Cost of the painting is 2200, if rate is 20 per mz. (i) Inner curved surface area = 2:° = 110 m2 198 (ii) 2rrrh = 110 2 x 22 x r x 10 = 110 7 7 r = - 4 m = 1.75 m (iii,) Capacity of the vessel = 'lri1'h = 22 x x x 10 m3 7 4 4 = 96.25 ms.

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