Question

a cylinder tank has a capacity of 6160 cubic centimetre find its depth if its radius is 14 cm calculate the cost of painting its curved outer surface at the rate of rupees 3 per square CM

Answer 1

Given

Capacity of cylinder (volume) =6160cm³

Radius =14cm

Volume of cylinder= pi r² h


Pi r² h =6160

22/7 x 14 ² x h =6160

H=6160x7/14²x22

H=10cm


Curved surface area of cylinder = 2 pi r h

=2 x22/7 x 14 x10

=2x22x2x10

=880cm²


Cost of painting 1cm²=₹3

Cost of painting 880cm²=880x3

=₹2640

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Answer 2

Answer is shown below...