A water tank can be filled by a tap in 8 hours and emptied by an outlet pipe in 12 hours how long will take to fill the cistern if both the tap and the pipe are opened together?
Answers
Answered by
0
Step-by-step explanation:
it can't be filled the filled water goes out
Answered by
1
Step-by-step explanation:
1/8-1/12. =
3-2/24
1/24
24 minutes
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