The Formula

The speed of a wave (v) is related to its frequency (f) and wavelength (λ) by the following equation:

v = fλ

Applying the Information

* Frequency (f): 200 Hz

* Wavelength (λ): 2.5 meters

Calculation

v = (200 Hz) * (2.5 m) = 500 m/s

Answer

The speed of the wave is 500 meters per second (m/s).