How many strokes if you lose the ball and have to drop another ball?

If you lose a ball in Golf and are unable to find it within the allotted time, you must take a stroke-and-distance penalty. This means you add one stroke to your score for the lost ball and then drop a new ball in the original spot where you played your last shot. In total, this results in two strokes: one for the lost ball and one for the new shot.