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 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 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 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 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 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 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 )

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?