If two pipes can fill a cistern of capacity 1,00,000 liters in 20 hours and 30 hours respectively, find the time taken by both of them to fill 75,000 liters of water in it.
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Rate fo inflow by pipe A=1,00,000/20=5000l/hr
Rate fo inflow by pipe B=1,00,000/30=(10000/3)l/hr
Total rate of inflow =5000+10000/3=25000/3
L/hr
Time taken =total volume /rate of inflow
=75000/( 25000/3)=9 hrs.
Rate fo inflow by pipe B=1,00,000/30=(10000/3)l/hr
Total rate of inflow =5000+10000/3=25000/3
L/hr
Time taken =total volume /rate of inflow
=75000/( 25000/3)=9 hrs.
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