Chemical drum

A cylinder chemical drum is 220.5cm long and the radius of the drum is 42cm. Calculate the cost of painting the drum at the rate of RS.0.15/cm2.

Correct answer:

x =  10390.8177 RS

Step-by-step explanation:

h=220.5 cm r=42 cm  S1=π r2=3.1416 4225541.7694 cm2 S2=2π r h=2 3.1416 42 220.558188.5791 cm2  S=2 S1+S2=2 5541.7694+58188.579169272.118 cm2  x=0.15 S=0.15 69272.118=10390.8177 RS=1.039104 RS

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