A pipe can drain two-thirds of a tank in 12 minutes. How much of the tank will be drained in 8 minutes?

Explanation

Since the pipe empties 2/3 of the tank in 12 minutes, the rate is (2/3) ÷ 12 = 1/18 of the tank per minute. In 8 minutes, the amount emptied is 8 × (1/18) = 4/9 of the tank.