Two pipes running simultaneously can fill a tank in 4 hours. If both pipes run for 3 hours and the first one is then shut off. It requires 3 hours more for second to fill the pool . How long would it take each pipe to fill the pool ?
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Answered by
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well first of all this question does not belong in this section this question is of mathematics subject so I request the questionnaire that please do not post your queries in different section otherwise it will be difficult for people to find your question and answer it.
now let's talk about the solution.
According to the question when both pipes are working simultaneously then the work is completed in 4 hours so if the two pipes works simultaneously for 3 hours the total work completed will be (3/4).
The remaining (1/4) amount of work done will be completed by pipe B alone. And according to the question it was completed in 3 hours.
so we can say that pipe B completes (1/4) amount of work in 3 hours that means it will take (3x4) amount of time to complete the whole work so we can essay pipe B alone will fill the pool in 12 hours.
Now as we know that pipe B complete (1/4) amount of work in 3 hours so initially when both pipes were working simultaneously for 3 hours, pipe B completed its (1/4) amount of work. So we can conclude that in the whole process pipe A completed (2/4) amount of work in those 3 hours. That means pipe A can complete (2/4) amount of work in 3 hours. So it will take 3 hour more to complete the whole work, if it was working alone. That means pipe A takes 6 hours to complete the task when working alone .
Final answer:
A: 6hours
B: 12hours.
now let's talk about the solution.
According to the question when both pipes are working simultaneously then the work is completed in 4 hours so if the two pipes works simultaneously for 3 hours the total work completed will be (3/4).
The remaining (1/4) amount of work done will be completed by pipe B alone. And according to the question it was completed in 3 hours.
so we can say that pipe B completes (1/4) amount of work in 3 hours that means it will take (3x4) amount of time to complete the whole work so we can essay pipe B alone will fill the pool in 12 hours.
Now as we know that pipe B complete (1/4) amount of work in 3 hours so initially when both pipes were working simultaneously for 3 hours, pipe B completed its (1/4) amount of work. So we can conclude that in the whole process pipe A completed (2/4) amount of work in those 3 hours. That means pipe A can complete (2/4) amount of work in 3 hours. So it will take 3 hour more to complete the whole work, if it was working alone. That means pipe A takes 6 hours to complete the task when working alone .
Final answer:
A: 6hours
B: 12hours.
Answered by
0
Final answer:
A: 6hours
B: 12hours.
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