How much more efficient is a than B?

A is 60\% more efficient than B. In how many days will A and B working together complete a piece of work which A alone takes 15 days to finish? A can complete whole work in 15 days. So, A=8/5B .

How many days does it take to do 40\% more efficient?

Hence when actual difference is 6 days C will take 6*28/3 = 56 days. Therefore A will take 50 days. B is 40\% less efficient than A and hence takes 50*35/25 = 70 days.. Lets Assume B takes 1 day to complete a certain work. A is 40\% more efficient so it will need .6 days to complete the same.

How long does it take for A and B to complete work?

A and B together can complete a work in 3 days. They start together but after 2 days, B left the work. If the work is completed after two more days, B alone could do the work in A can complete a piece of work in 18 days, B in 20 days and C in 30 days, B and C together start the work and forced to leave after 2 days.

How much work can A B and C do together?

A, B and C can alone complete a work in 10, 12 and 15 days respectively. All started the work but B left the work 3 days before completion. How much work was then done by A and B together in the total work?

A is 40\% more efficient than B, and B is 20\% less efficient than C. If A can do a work in 50 days. In how many days all of them together can do the whole work?

How long does it take A and B to complete a job?

2) If A and B work together, they will complete a job in 7.5 days. However, if A works alone and completes half the job and then B takes over and completes the remaining half alone, they will be able to complete the job in 20 days. How long will B alone take to do the job if A is more efficient than B?

How many days does it take to complete a certain work?

Lets Assume B takes 1 day to complete a certain work. A is 40\% more efficient so it will need .6 days to complete the same. C is 20\% more efficient so it will need .8 days to complete the same. A needs .2 days less than C to complete certain work.