It is commonly believed that bad cold takes seven days to subside automatically. After taking medicine, it takes 7 days to cure. Comment.

A can complete a task alone in 9 days while B takes 13.5 days to do it by herself . Together with C it takes them 4.5 days to complete the task . If C and D together can complete the task in 18 days , then how many days will D need to complete the task by herself ?

A can complete a task alone in 8 days, while B takes 12 days to do it by herself. Together with C it takes them 4 days to complete the work. If C and D together can complete the task in 15 days, then how many days will D need to complete the task by herself?

A man take 80 days to complete a job. To complete this job, 4 men, 8 women and 4 machines take 5 days. Alternatively, 4 men, 1, women and 2 machines take 10 days to complete the job. Find the time taken by a women to complete the job (in says)

Crops that take 100 days for harvesting are called

Change the statements, converting expressions into statements in ordinary language: Shared used to take p cups tea a day . After having some health problem . He takes p-5 cups of tea a day.