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TIME and WORK

We are aware that this chapter is important for competitive exam from work and time chapter  question are asked in various exam like ssc, upsc, banking etc. that work and time are time consuming chapter. If a person A can do a piece of work in 'a' days, then working at the same uniform speed A will do 1/a  fraction of the work in one day. If B can do a work in 'b' days, then work done by him in 1 day is 1/b. Then, in one day, if A and B work together, then work done by them in 1 day, = (1/a + 1/b); For example, Days taken to complete 'a' work 15 10 1/3 Fraction of work done in a day 1/15th 1/10 3   Relationship between Men and Work More men         ------- can do ------->             More work Less men         ------- can do ------->    ...