A big iron boiler tank opened on top is cylindrical in shape. It's height is 10m and radius is 7m. It gets corroded at a rate of 3 sq. meter/day. The number of days in which it totally gets corroded is (Take π=227 )

A big iron boiler tank opened on top is cylindrical in shape. It's hei

1.	A big iron boiler tank opened on top is cylindrical in shape. It's height is 10m and radius is 7m. It gets corroded at a rate of 3 sq. meter/day. The number of days in which it totally gets corroded is (Take π=227 )
Answer» A big iron boiler tank opened on top is cylindrical in shape. It's height is 10m and radius is 7m. It gets corroded at a rate of 3 sq. meter/day. The number of days in which it totally gets corroded is (Take $π = \frac{22}{7}$ )