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     EduGorilla 
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    Four pipes A, B, C and D are connected to a pool. These pipes can fill the pool separately is 4 hours, 8 hours, 12 hours and 16 hours respectively. When all the four pipes were opened simultaneously, it was observed that pipes A and B were supplying water at two-third of their normal rates for the 1st two hours after which they supplied water at the normal rate. Pipe C and D supplied water at 4/7th of its normal rate for first 2 hours, after which it supplied at its normal rate. In how much time, the pool would be filled?

    Options :-

    1. 2.35 hrs
    2. 2.40 hrs
    3. 3.40 hrs
    4. 3.04 hrs
    5. 2.64 hrs
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Reply To: Four pipes A, B, C and D are connected to a pool. These pipes can fill the pool separately is 4 hour….
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