A bathtub can hold 80 gallons of water. The faucet flows at a rate of 4 gallons per minute. What percentage of the tub will be filled after 6 minutes.

In 6 minutes, the bathtub will have 24 gallons of water in it. To find how much percentage of the tub this is, you have to divide it by 80. 24/80 is 0.3. 0.3 is 30 percent. So, after 6 minutes, the tub will be 30% filled.