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Q.

A storage tank consists of circular cylinder with a hemisphere adjoining at either end. If the diameter of the cylinder be 1.4 m and its length be 8 m, the cost of painting it on the outside at the rate of Rs.10 per m2 will be

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a

Rs.413.6

b

Rs.4136

c

Rs.41. 36

d

Rs.4140

answer is A.

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A storage tank consists of circular cylinder with a hemisphere adjoining at either end. If the diameter of the cylinder be 1.4 m and its length be 8 m, the cost of painting it on the outside at the rate of Rs.10 per m2 will be