A and B can do a piece of work in 45 days and 40
days respectively. They began to do the work together but A leaves after some
days and then B completed the remaining work in 23 days.The number of days
after which A left the work was
a) 9 days
b) 10 days
c) 11 days
d) 12 days
e) None of these.
No comments:
Post a Comment