Chetan i am not convinced from the ans i.e 3.14*\(r^2\)*h
why we took height = .25m as it is not the actual total height ??
and total volume =3.1 as it leaked for 10 min only given.
please help what am i missing ?
Water is leaking out from a cylinder container at the rate of 0.31 m^3 per minute. 10 minutes later, the water level decreases 0.25 meter, what is value of the radius?
in one minute, the volume of water lost is .31\(m^3\)
so in 10 minutes the volume of water lost is 3.1\(m^3\)..(1)
now, we are also said that the height lost is .25m, we are not concerned with the entire height...
what is the volume of water in this .25m...
since it is a cylinder the volume of .25 m= pi*\(r^2\)*h=3.14*\(r^2\)*.25...
\(r^2\)=1/.25=4.. so r=2 approx