Question 483516


A can do 1/3 of certain work in 10 days and B can do 2/5 of the same work in 8 days find how much work can B do in 1 day.


I don't see the reason why A was mentioned since B can do 2/5 of the job in 8 days, and it's being asked how much work B can do in 1 day.


Since B can do {{{2/5}}} of the job in 8 days, then we can set up a proportion to answer this question.


Let fraction of work by B in 1 day be W. Then we'll have: 


{{{(2/5)/W = 8/1}}}


{{{8W = 2/5}}}


W, or fraction of work that can be completed by B in 1 day = {{{(2/5)/8}}} = {{{highlight_green(1/20)}}}