Problem:
Four friends do yardwork for their neighbors over the weekend, earning , , , and respectively. They decide to split their earnings equally among themselves. In total how many dollars will the friend who earned give to the others?
Answer Choices:
A.
B.
C.
D.
E.
Solution:
Altogether the four friends earned $100, so they each will have $25 after they divide their earnings equally. The friend who earned $40 will give to the others $40-$25 = $15.
Answer: .
The problems on this page are the property of the MAA's American Mathematics Competitions