Question

The efficiency of inlet pipe 'P' is 60% of the

Q: Answer-The efficiency of inlet pipe 'P' is 60% of the efficiency of another inlet pipe 'Q'. When both pipes...

Let the efficiency of pipe Q be 5a litreshour. So, efficiency of P 0.6 X 5a 3a litreshour Total capacity of given tank 3a 5a X 4 32a litres Capacity of the tank to be filled by pipe Q 1.5 X 32a 48a litres New efficiency of pipe Q 0.8 X 5a 4a litreshour Required time 48a4a 12 hours

efficiency of another inlet pipe 'Q'. When both pipes are opened together, they fill a tank in 4 hours. How long will it take for pipe 'Q', operating at 80% of its efficiency, to fill a tank that is 50% larger in capacity than the original tank?

A 9.6 hrs

B 12 hrs

C 15 hrs

D 8.4 hrs

E 7.2 hrs

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