A can complete a work in 15days and B can do the same work in 7days. If A after doing 3days, leaves the work, find in how many days B will do the remaining work?  Choose the correct choice.
A) 2days  B) 5 1/2 days  C) 6 1/2 days  D) 7 1/2days  E) 10days
The required answer = (15-3)*7 / 15 = 84/15 = 5 1/2 days   Answer is 5 1/2 days
<result>B</result>
A can complete a work in 15days and B can do the same work in 7days. If A after doing 3days, leaves the work, find in how many days B will do the remaining work?