It costs Rs 2200 to paint the inner curved surface of a cylindrical vessel 10 m deep. If
the cost of painting is at the rate of Rs 20 per
, find
(i) inner curved surface area of the vessel,
(ii) radius of the base,
(iii) capacity of the vessel.
Solution (i)
Let inner curved surface area of a cylindrical vessel
It is given that it costs Rs 2200 to paint the inner curved surface of a cylindrical vessel at the rate of Rs 20 per
.
Therefore,
Therefore, inner curved surface area of a cylindrical vessel is equal to 110
.
Solution (ii)
Let base radius of cylindrical vessel
Height of the cylindrical vessel
m
Inner curved surface area
Therefore,
m
Solution (iii)
Capacity of the cylindrical vessel
=96.25
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