A certain number of people were supposed to complete a work in 24 days. The work, however, took 32 days since 9 people were absent throughout. How many people were supposed to be working originally?

A certain number of people can complete can complete a piece of work in 12 days working 5 hours a day. If thenumber of men is decreased by half, how many hours a day should they work, so that the work is to be completed in 15 days ?

A certain number of people can complete can complete a piece of work in 12 days working 5 hours a day. If thenumber of men is decreased by half, how many hours a day should they work, so that the work is to be completed in 15 days ?

A certain number of persons can complete a piece of work in 55 days. If there were 6 persons more, the work could be finished in 11 days less. How many persons were originally there?

27. 15 people completed a work in 7 days 10 How many days should people take to complete this work?

A certain number of men complete a work in 45 days. If there were 5 men more, the work could be fin- ished in 9 days less How many men were originally there?