Question

what was wrong with margie's mechanical teacher? who set it right? How?

Answer 1

The thing that was wrong with Margie's mechanical teacher was that the course which Margie was learning was too fast for her to study.
The county inspector managed to resemble it. He slow down the geography sector of the teacher.

Answer 2

Margie's mechanical teacher was not functioning properly. After checking, the Country Inspector told that the reason why Margie has been getting bad marks in her Geography subject was because of the malfunctioning of the mechanical teacher. The machine had been not in a proper working condition. It had been accelerated to a higher level.

The Country Inspector set the machine back into the working condition. He did this by lowering the pace of the level to a learner of ten years of age.