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Ashok can do a piece of work in 9 days. Borle in twice that time. Madhu can only do 3/4 as much work as Ashok inday. How long will Ashok, Borle and Madhu, working together, require to do the same job?(A) 5 days(B) 6 days(C) 4 days(D) 12 days |
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