Does a `220 Hz` sound wave move faster, slower, or at the same speed as a `440 Hz` sound wave ?

A car moving at 35 m/s approaches a stationary whistle that emits a 220 Hz sound. The speed of sound is 343 m/s. What is the speed of the sound relative to the driver of the car?

The frequency of a sound wave is 200 Hz and its wavelength is 150 cm. What is the distance travelled by a sound wave in the time taken to produce 150 waves ?

If the frequency of a sound wave of wavelength 34 m is 10 Hz in air, then the speed of the sound wave in air is ......... ms^(-1)

The speed of sound waves having a frequency of 256 Hz compared with the speed of sound waves having a frequency of 512 Hz is :