William was a factory worker in the 1920s. his company trained him in the exact sequence of steps he needed to make each day so that he would work to maximum productivity. william's company was using the principles of

william's company was using the principles of scientific management

scientific management is a management practice which rely on scientific finding in order to improve the productivity in the company.
In scientific management mindset, each company need to implement a specific method completely to the letter without any form of flexibility.
This form of management started to fade away by the end of 20th century.

This question seems like it should be quite hard although it reall just wants you to subtract.92-8.7=83.3