A can complete a work in 15 days and B can complete a work in 25 days. If they start work together and B leaves 7 days before completion, then the work will be completed in how many days?
Three men A,B and C complete a work in 10 days, 12 days and 15 days respectively. All three of them starts the work together. After 2 days A left and after next 2 days C also left. Find in how many more day's whole work will be completed?
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