The diagram shows a lever.

A bar sits on top of a brown triangle with a black weight at the left end and a finger pushing on the bar at the right end. Dotted lines run above and parallel with the bar and vertically from the above dotted line to the center of the weight, the point where the triangle meets the bar, and the finger. The distance from the center of the weight to the point of the triangle is labeled 3 meters. The distance from the point of the triangle to the finger is labeled 6 meters.
The mechanical advantage of the lever is