Question (23/50)
X can do a piece of work in 40 days. He works at it for 8 days and then Y finished the remaining work alone in 16 days. Approximately how long will they together take to complete the work ?(A) 13 Days
(B) 15 Days
(C) 17 Days
(D) 20 Days
Question (24/50)
A and B can together finish a work in 30 days. They worked together for 20 days and B left. After another 20 days A finished the remaining work. In how many days A alone can finish the same work ?(A) 45 Days
(B) 50 Days
(C) 55 Days
(D) 60 Days