Anaerobically treated effluent has MPN of total coliform as 106/100 ml, After chlorination, the MPN declines to 102/100 ml as 104.The percent removal (%R) and log removal (log R) of total coliform MPN is

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Correct Answer is : %R = 99.99; log R = 4

GATE Civil Engineering (CE) 2011 Solved Paper