A, B and C alone can do a piece of work in 20, 45 and 60 days respectively. They all started the work together, but B left after 5 days. In how many days, was the remaining work completed?
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A, B and C alone can do a piece of work in 20, 45 and 60 days respectively. They all started the work together, but B left after 5 days. In how many days, was the remaining work completed?