a2zinterviews

Work from Days :

If A can do a piece of work in n days, then A’s 1 day’s
work = 1 / n.

Days from Work :

If A's 1 day's work = 1 / n, then A can finish the work in n days.

Ratio :

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.