2. (7 points) There are apples in five boxes, with an equal number of apples in each. When 60 apples were taken out of each box, after that, the total number of apples left was the same as the number of apples that were originally in two boxes. How many apples were in each box?

Answer: 100.
Solution. In total, $60 \cdot 5=300$ apples were taken out, and this is equal to the number of apples that were in three boxes. Therefore, there were 100 apples in each box.

Criteria. Any correct solution: 7 points.

If it is not justified that there were 100 apples in each box, but it is verified that the condition is satisfied in this case: 4 points.

Correct answer without any explanation: 2 points.