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a tap can fill a tank in 6 hours. After half the tank is filled,two more similar taps are opened.What is the total time taken to fill the tank completely ? ans is 4 hour i need solution. please |
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Answer» alf the tank is filled, THREE more similar taps are OPENED. Hence, TOTAL NUMBER of taps becomes 4. 4 taps can FILL remaining half in 30 minutes. |
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