সব প্রশ্নে ফিরে যান
Math
A pump can fill a tank with water in 2 hours. Because of a leak, it took 2 1/3 hours to fill the tank. The leak can drain all the water of the tank what time ?
A) 4 1/3 hrs
B) 7 hrs
C) 8 hrs
D) 14 hrs
সঠিক উত্তর