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     EduGorilla 
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    Pipe A fills a tank of 700 litres capacity at the rate of 40 litres/minute. Another pipe B fills the same tank at a rate of 30 litres/minute. A pipe at the bottom of the tank drains the tank at the rate of 20 litres/minute. Pipe A is kept open for a minute and then closed. Pipe B is kept open for a minute and then closed. Pipe C is kept open for a minute and then closed and the whole cycle is repeated. How long will it take for the given tank to overflow?

    Options :-

    1. 48 minutes
    2. 39 minutes
    3. 14 minutes
    4. 42 minutes
    5. None of these
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Reply To: Pipe A fills a tank of 700 litres capacity at the rate of 40 litres/minute. Another pipe B fills the….
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