Work from Days:If A can do a piece of work in n days, then A's 1 day's work =\(\frac{1}{n}\)Days from Work:If A's 1 day's work =\(\frac{1}{n}\),then A can finish the work in n daysRatio:If A is thrice as good a workman as B, then:Ratio of work done by A and B = 3 : 1.Ratio of times taken by A and B to finish a work = 1 : 3.
