An project is completed by 50 students in 150 days and 30 teachers in 100 days. 25 students worked for first 30 days, then 5 more students joined them for next 100 days, and then 40 teachers replaced them to complete the remaining work. What is the time taken by 40 teachers to complete the remaining work?
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sorry don't know
s sheet as so sad as add add egg do so do do do
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teachers take 20 days to complete the remaining work
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