Question
Tap A and Tap B fill a drum of volume 483 liters in 21
minutes. If their efficiencies are in the ratio x:y respectively and B alone takes to fill the cistern 48.3 minutes. Find x-y.Solution
A+B B Time 21 : 48.3 Efficiency 48.3 : 21 23 : 10 Efficiency of A+B = 23 Efficiency of B = 10 Efficiency of A = 23 – 10 = 13 Ratio = x:y = 13:10 So, x – y = 13 – 10 = 3
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