(1/2 m) x (1/4 m) x (5/4 cm)

The question seems to be asking for the calculation of a volume, but the given numbers are inconsistent with standard units of measurement.

The first two values are in units of length and mass, respectively, which are necessary to determine density or other physical properties, but they are not enough to calculate volume alone.

The third value is in centimeters, which is a unit of linear measurement, not volume.

Therefore, it is not possible to calculate the volume with the information provided in the question, and it cannot be determined which class in history would consider this type of question as the worst.