fox duck beans riddle

Once upon a time a farmer went to a market and purchased a fox, a goose, and a bag of beans. On his way home, the farmer came to the bank of a river and rented a boat. But crossing the river by boat, the farmer could carry only himself and a single one of his purchases: the fox, the goose, or the bag of beans.

If left unattended together, the fox would eat the goose, or the goose would eat the beans.

The farmer’s challenge was to carry himself and his purchases to the far bank of the river, leaving each purchase intact. How did he do it?

the following steps:

1. Take the Goose over
2. Return
3. Take the beans over
4. Return with the goose
5. Take the fox over
6. Return
7. Take goose over

Thus there are seven crossings, four forward and three back.