What is the speed of sound propagation in water if the signal sent from the ship reaches the bottom

What is the speed of sound propagation in water if the signal sent from the ship reaches the bottom of the reservoir in 0.02 s? The depth of the reservoir is 29 m.

We need to determine the speed of sound propagation in water, that is, in this case, we just need to find out how many meters the ship’s signal will pass in one second, if 29 meters passes in 0.02 seconds. To do this, we calculate what part is 0.02 s from one second: 1 / 0.02 = 50. Then we multiply the result by 29: 50 * 29 = 1450 m.
Answer: the speed of sound propagation in water is 1450 m / s.