Question

it cost rupees 2200 to paint the inner curved surface area of the cylindrical vessel 10 meter high at the rate of rupees 20 per square meter. calculate the inner curved surface area and the capacity of the vessel

Answer 1

Answer: 110 m², 96.25 m³

Step-by-step explanation:

Curved surface area of cylinder = 2πrh

= 2 × 22/7 × r × 10 = 440r/7

Curved surface area is also Total cost/Rate

440r/7 = 2200/20

r = 7/4 m

So Curved surface area = 440 × 7/ (4 × 7)

Curved Surface Area = 110 m²

Volume = πr²h = 22/7 × 7/4 × 7/4 × 10

Volume = 385/4 m³ = 96.25 m³

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