Question

A clyndrical vessel open at the top has a base diameter 56 cm. If the total cost of painting the outer curved surface of the vessel is 352 rs. at the rate of 0.2 rs. per 100 cm 2 , then what is the height of the vessel ?

Answer 1

the correct answer is 10m

Answer 2

diameter of the base=56 cm
radius of the base=28 cm
now,
rs.0.2 is the cost of painting 100cm^2
rs. 352 is the cost of painting 100/0.2×352=176000