A torque on a beam results when a force is exerted on the beam at a location some distance from the fulcrum. A torque will cause the beam to rotate. The amount of torque depends upon the amount of force and the distance from the fulcrum to where that force is applied. When there is more than one torque, they can counteract each other. But if completely unbalanced, the beam will rotate in the direction of the stronger torque.
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Getting a Handle on Torque - help3
There are three similar versions of this question. Here is one of the versions:
Version 1:
Which way will the meter stick rotate if the objects are hung on the stick as shown below? Each object is labeled with its mass in kilograms.
As of this writing (August, 2017), the topic of torque and rotation is not addressed at The Physics Classroom Tutorial. However, the following simulation from the Physics Interactives section could be useful:
Balance Beam