Problem:
A gallon of paint is used to paint a room. One third of the paint is used on the first day. On the second day, one third of the remaining paint is used. What fraction of the original amount of paint is available to use on the third day?
Answer Choices:
A.
B.
C.
D.
E.
Solution:
After the first day,
of the paint remains. On the second day,
of the paint is used. So for the third day
of the original gallon of paint is available.
Answer: .
The problems on this page are the property of the MAA's American Mathematics Competitions