Three valves when opened individually, can drain the water from certain tank in 3, 4 and 5 minutes respectively, What is the gratest part of the tank that can be drained in one minute by opening just two of values.
ক. 7/12
খ. 1/2
গ. 1/4
ঘ. 1/5
উত্তর: 7/12
Admission FBS University papers MCQ — Prosthuti প্রশ্নব্যাংক
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