Question (19/50)
A can do a piece of work in 14 days which B can do it in 21 days. They begin together but 3 days before the completion of the work, A leaves off. The total number of days to complete the work is ?(A) A
(B) B
(C) C
(D) D
Question (20/50)
A and B can do 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) 11 Days
(C) 13 Days
(D) None of these