Light is incident on the surface of the water in an aquarium with an angle of 37.5o. It travels through the water, reflects off the mirrored bottom of the aquarium, and emerges back into the air some distance to the right of its entry point. If the aquarium is 40 cm deep and light travels at a speed 222 000 km/s in the aquarium water, determine the horizontal distance between the light's entry and exit points. (You may use speed of light in vacuum as 3 X 10^8 m/s)