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     EduGorilla 
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    A cistern can be filled by 3 pipes in 10, 18 and 30 minutes respectively and emptied by an escape pipe in 45 minutes. The three taps are turned on at noon, but the escape pipe is accidentally left open at the same time and not closed for one tenth of an hour. At what time will the cistern be full?

    Options :-

    1. 12:18 pm
    2. 12:12 pm
    3. 12:24 pm
    4. 12:06 pm
    5. None of these
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