question_answer

A solid composed of a cylinder with hemispherical ends (as shown in the figure). If the whole length of the solid is 104 cm and the radius of each of its hemispherical ends is 7 cm then find the cost of polishing its surface at the rate of Rs..

A)  Rs. 969.78

B)  Rs. 999.89

C)  Rs. 856.56

D)  Rs. 457.60

E)  None of these