Question

a cistern can be filled by a tap in 6 hours and emptied by an outlet pipe in 8 hours. how long will it take to fill the cistern if both the taps and pipe are turned an together



give answer with explanations ​

Answer 1

Step-by-step explanation:

When we have question like one is filling the tank and other is empting it, then we subtraction as,

Filled in 1 hour = 1/6

Empties in 1 hour = 1/8

Net filled in 1 hour = 1/6 - 1/8

= (8-6)/48

= 2/48

=1/24

So cistern will be filled in 24 hours.

Answer 2

Answer:

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