75 men take 8 days to complete 1/3rd of a work. However, the work is now required to be completed in another 13 days. 25 more men are employed on the 9th day and 50 more after 4 days. How many men must be discharged at the end of the 16th day so that the rest of the men, working for the remaining time, will just complete the work in time?
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