Time and Work Short Tricks & Formulas

 Time and Work Short Tricks & Formulas

 

1.     M₁D₁W₂  = M₂D₂W₁  (M-man, D-Day, W-Work).

 

2.     If A can do a piece of work in x days, then

        A’s 1 day work = 1/x.

 

3.     If A’s 1-day work = 1/x, then A can finish a piece of work in x days.

 

4.     If A is X times as good a workman as B then:

Ratio of work done by A and B = X : 1

Ratio of time taken by A and B to finish a work = 1 : X.

 

5.If A can do a piece of work in x days and B can do it in y days then A and B working together will do the same work in xy/(x+y) days.

 

6. If A and B together can do a piece of work in Y days and A can do it in X days then B working alone will do the same work in xy/(x-y) days.

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