Challenge 91

Paulo Cesar's asses

Difficulty level:

Paulo Cesar needs to carry bags, and for that he has donkeys. If he carries 2 bags on each donkey, there are 13 bags left. If he carries 3 sacks on each donkey, there are 3 unoccupied donkeys. What is the total number of bags that Paulo Cesar should carry?

* Challenge submitted by Francerlandio Gomes.