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** Percentage wise distribution of Topics For Tier-II**

**TIME AND WORK**

1. If A and B working together, can finish a piece of work in x days, B and C in y days, C and A in z days, then

(a) A, B and C working together will complete the job in =

2. (a) If A can complete a work in x days and B is k times efficient than A, then the time taken by both A and B, working together to complete the work is

(b) If A and B, working together, can complete a work in x days and B is k times efficient than A, then the time taken by -

3. If A working alone takes ‘a’ days more and B working alone takes ‘b’ days more than A and B together, then the number of days taken by A and B, working together, to finish a job is given by √ab .