Cross the Bridge - How Farmer will cross the bridge.

A farmer is returning from market, where he bought a she-goat, a wolf and cabbage.
On the way home he must cross a river.

His boat is little, allowing him to take only one of the three things.
He can’t keep the she-goat and the cabbage together (because the she-goat would eat it), nor the she-goat with the wolf (because the she-goat would be eaten).

How many minimum trips for the farmer to get everything on the other side (without any harm)?
Crossing the river counts as one trip.

Solution -

1. Farmer crosses with goat.

2. Farmer returns alone.

3. Farmer crosses with cabbage

4. Farmer returns with goat.

5. Farmer crosses with wolf.

6. Farmer return alone.

7. Farmer crosses with goat.

So finally all are on other side of bridge. And total trips by Farmer are 7.