Infer The total time it took to assemble a Model T was 93 minutes. Yet a completed Model T rolled off the assembly line every 24 seconds. How was this possible?

It was possible because Henry T company used the moving assembly line.

Before the period of moving assembly line, each factory employee will have to assemble each vehicle. The process of is very time consuming.

However, the first assembly line which is used by Henry Fird is a manufacturing system for high volume production.

The structure of the assembly line entails subdivision of assembly operations into a number of smaller tasks that are assigned to workers placed sequentially in a fixed order and product are moved by conveyor.

The method of assemble line makes the process of assembling Model T less time-consuming.

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24 seconds after the previous assembling process started, they could start assembling another car. They didn´t need to wait until the first assembling process was finished to start the next.  

Explanation:

Ford´s moving assembly line, based on previous continuous-flow production methods allowed the mass production of automobiles, using less time to assemble each car, and allowing to assemble multiple cars at the same time.

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