Question

A tank is filled 10% in 1hour and 8% of the water is emptied in the next hour. If it is repeated again, find the percentage of tank filled with water

Answer 1

The tank will be filled 10% in the first hour. In next hour 8 % of it = 10 * 8/100 = 8 % of the tank is emptied. Remaining water after the second hour is 9.2%. Again in the third hour, 10% tank is filled, it becomes 19.2%. Again, 8% of it i.e. 19.2 * *8/100 = 1.536 % is emptied in the fourth hour , So remaining water is 19.2 – 1.536 = 17.66 %