40 men can cut 60 trees in 8 hours. if 8 men leave the job, how many trees will be cut in 12 hours?

20 men can cut 30 trees in 4 h. If 4 men leave the job, how many trees will be cut in 12 h?

A machine takes 5 hours to cutting 120 tools. How many tools will it cut in 20 hours?

If 36 men can do a piece of working 25 hours in how many hours will 15 men do it?

If 8 women collect 200 kg of tea leaves in 10 hours. How many more (in kg) of tea leaves will 12 women collect in 8 hours?

While working 7 hours a day, A alone can cut 35 trees in 15 days. In how many days A can cut 10 trees working 5 hours a day?

If 8 women collect 200 kg of tea leaves in 10 hours. How many more (in kg) of tea leaves will 12 .women .collect in 8 hours?