Question
Pipe 'X' takes 50 minutes to fill the tank by itself,
while Pipe 'Y' can fill it in 30 minutes on its own. What is the time required for both pipes to fill the tank when they are operated simultaneously?Solution
ATQ,
Let the capacity of tank be 150 units (LCM of 50 and 30) Efficiency of 'P' = (150/50) = 3 units/minute Efficiency of 'Q' = (150/30) = 5 units/minute So, required time = 150 ÷ (3 + 5) = 18.75 minutes
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