Solution: As shown in the figure, OA stands for river width and OB stands for ship direction, so OA=96m and AB=72m. ..

According to the meaning of the question, the sailing distance of the ship is: 962+722= 120 (meters).

Ship speed: 2+3=5 (m/s),

So the sailing time of the ship is: 1205=24 (seconds).

A: The sailing time of the ship is 24 seconds.

So the answer is: 24 seconds.