Each of 10 machines works at the same constant rate doing a certain job. the amount of time needed by the 10 machines, working together, to complete the job is 16 hours. how many hours would be needed if only 8 of the machines, working together, were used to complete the job?

t = 20 hr

Explanation:

Given data:

Total number of machine = 10

Total time for machine is 16 hr

we know that

From the information given in the question  we have

[/tex]16\times 10x = job[/tex]

As demand in the question we have

, job will remain same as before so

solving for t

t = 20 hr

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