Final answer:
The remaining amount of paint in the pail is 3-17/20 gallons.
Step-by-step explanation:
To solve this problem, we need to subtract the amount of paint taken from the total amount in the pail. In the morning % gallon is taken, which is equal to 5/100 * 5 = 1/20 gallon. In the afternoon, 1-3/8 gallons are taken. So, the total amount of paint taken is 1/20 + 1-3/8 = 1/20 + 11/8 = 1/20 + 22/20 = 23/20 gallons. To find the amount of paint remaining, we subtract the total amount taken from the initial amount in the pail: 5 - 23/20 = 100/20 - 23/20 = 77/20 = 3-17/20 gallons.