A rectangular vessel when full of water takes 10 minutes to be emptied through an orifice in its bottom. How much time will it take to be emptied when half filled with water

A rectangular vessel when full of water, takes 10 min to be emptied through an orifice in its bottom. How much time will it take to be emptied when half filled with water?

A hemispherical tank full of water is emptied by a pipe at the rate of (25)/7 litres per second. How much time will it take to empty half the tank, if it is 3m in diameter?

A hemispherical tank full of water is emptied by a pipe at the rate of (25)/7 litres per second. How much time will it take to empty half the tank, if it is 3m in diameter?

A hemispherical tank full of water is emptied by a pipe at the rate of (25)/7 litres per second. How much time will it take to empty half the tank, if it is 3m in diameter?

A hemispherical tank full of water is emptied by a pipe at the rate of (25)/(7) litres per second. How much time will it take to empty half the tank,if it is 3m in diameter?

A cylindrical tank full of water is emptied by a pipe at the rate of 225 litres per minute. How much time will it take to empty half the tank, if the diameter of its base is 3 m and its height is 3.5 m? [Use pi=22//7 ]

A cylindrical tank full of water is emptied by a pipe at the rate of 225 litres per minute. How much time will it take to empty half the tank, if the diameter of its base is 3 m and its height is 3.5 m? [Use pi=22//7 ]

An empty bucket being filled with paint at a constant rete takes 6 minutes to be filled to (7)/(10) of its capacity. How much more time will it take to fill the bucket to full capacity?

A hemispherical tank full of water is emptied by a pipe at the rate of 3 4/7 litres per second. How much time will it take to empty half the tank, if it is 3m in diameter? (Take pi=22/7 )