Working 8 hours a day, Kamla can embroider a saree in 18 days . How many hours per day should she work so as to finish the work in 12 days?
Working 5 hours daily ,Shaheed can embroider sarees in 21 days .How many days will it take for him to embroider 6 sarees working 7 hours daily ?
12 typists working for 4 hours per day to type a book in 18 days. How many days will 4 typists have to work for 8 hours per day to type the same book?