## Time & work Aptitude Questions

Work

Work is the quantity of energy transferred from one system to another. This is the technical definition of work. But for questions based on this topic, work is defined a s the total amount of job or task assigned or the amount of job actually done.

Problem on work are based on the application of concept of ratio of time and speed. Work is always considered as a whole or one. There exists an analogy between the time, speed and distance problems and work

Work based problems are more or less related to time, speed and distance. So candidates have to prepare these three topics well for getting more marks on work topic

Above mentioned work throws light on three important points

- Work = 1 (it is always measured as a whole) = distance
- Rate at which work is done =speed
- Number of days required to do the work = time

Important facts and formulae-

Work from Days

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

Days from work

- If A’s 1 day’s work = 1/n, then A can finish the given work in n days

Ratio

- If A is thrice as good a workman as B, then:
- Ratio of work done by A and B is equal to 3: 1
- Ratio of times taken by A and B to finish the work is equal to 1: 3

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