what is the mean of 1.50, 1.50, 1.25

The mean of 1.50, 1.50, and 1.25 is 1.42.

To calculate the mean, add the numbers together and then divide by the total number of values:

(1.50 + 1.50 + 1.25) / 3 = 4.25 / 3 = 1.42