A pipe can fill a cistern in 8 minute and a waste pipe can empty 6 kilo litres Water in one minute. If both pipes are opened together and the empty cistern can be filled in 20 minute. What is the capacity of the cistern?
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minutes. kilo litre
(8-1)=7. 6
20. ?(x)
x=6×7/20=7/5
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Step-by-step explanation:
cistern capacity will be 80 killo liter
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