teagan1716
29.01.2020 •
Mathematics
Apipe can fill a pool in 12 hours. another pipe can fill the pool in 18 hours. how long will it take for the two pipes to fill the pool if they operate simultaneously?
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Ответ:
It takes 7.2 hours for the two pipes to fill the pool if they operate simultaneously
Solution:
Given that,
A pipe can fill a pool in 12 hours
Thus, in one hour first pipe does of the job
Another pipe can fill the pool in 18 hours
Thus, in one hour second pipe does of the job
Therefore, we can say,
In "x" hours, first pipe does of the job
In "x" hours, second pipe does of the job
Working together they do the one job.
Thus, we get,
Thus, it takes 7.2 hours for the two pipes to fill the pool if they operate simultaneously
Ответ: