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A tank can be filled by one pipe in thirty minutes and emptiend by another in fifty minutes if both are open how long will it take to fill the tank?
Wiki User
∙ 14y ago
Answer:
75 minutes.
Solution
let the volume of the tank = v, the time required to fill the volume = t
v = net flow rate * t
v = (v/50 - v/30) * t
v= v/75 * t
1 = t/75
t = 75 minutes.
Wiki User
∙ 14y ago
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