Question

A man can do work in 12 days how much work can be done in 1 days​

Answer 1

so, the 12 men can complete 1 work in 12 days which is equal to 6 men can complete 12work in X days. ⇒x=726=12 days. So the number of extra days which is needed to complete the work = 18 – 12 = 6 days.