Explanation:

Sound is a type of longitudinal, mechanical wave. They need a medium to propagate and will not travel through a vacuum. Sound travels at different speed in different media. The speed of sound is determined by the density (p) and compressibility (K) of the medium.
According to the World Book Encyclopedia, Chicago: World Book, 1999. 601, "The speed of sound in Distilled Water at 77 °F (25 °C), 1496 m/s, 4908 ft/s" or 1496 m/s (1500 m/s).