Three pipes x, y and z can fill the tank in 12 minutes, 18 minutes and 24 minutes respectively the pipe y is closed 3 minutes before the tank is full in what time will the tank be full
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Answer:
84/13
Step-by-step explanation:
x=12 } { 6
y=18 } → 72 { 4
z=24 } { 3
=
13
y=4*3 = 12
72+12 =84
answer = 84/13
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