To find the harmonic mean of two numbers (in this case, 50 and 75), you can use the formula:
Harmonic Mean = (2 First Number Second Number) / (First Number + Second Number)
Substitute the values into the formula:
Harmonic Mean = (2 50 75) / (50 + 75)
Harmonic Mean = (2 * 3750) / 125
Harmonic Mean = 7500 / 125
Harmonic Mean = 60
Therefore, the harmonic mean of 50 and 75 is 60.