A can do a piece of work in 10 days and B in 20 days. They begin together but A leaves 2 days before the completion of the work. The whole work will be done in.
A8 days
B7 2/3 days
C7 days
D6 days
A8 days
B7 2/3 days
C7 days
D6 days
Related Questions:
A can do th of a work in 4 days and B can do th of the same work in 5 days. In how many days they can finish the work, if they work together?