Why you can smell the perfume on the front table faster than your classmate at the back?

You can smell the perfume on the front table faster than your classmate at the back due to the principles of diffusion and airflow. The scent molecules disperse in the air from the source, moving more rapidly and directly towards you because of the shorter distance. Additionally, air currents in the room can carry the fragrance more effectively to your location, while your classmate's greater distance and potential obstructions slow down their access to the scent.