P alone can complete the work in 20 days, Q alone can complete the work in 30 days while R alone can complete the work in 10 days. They start working in turns as P works on first day, Q on second day and R on third day, so on till sixth day. On seventh day, all three worked together to complete remaining work. Find the approx. time in which whole work is completed.
P alone can complete the work in 20 days, Q alone can complete the work in 30 days while R alone can complete the work in 10 days. They start working in turns as P works on first day, Q on second day and R on third day, so on till sixth day. On seventh day, all three worked together to complete remaining work. Find the approx. time in which whole work is completed. Correct Answer 9.45 days
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Feb 20, 2025