Discussion Forum
Que.  X can do a piece of work in 40 days. He works at it for 8 days and then Y finished it in 16 days. How long will they together take to complete the work? 
a.  13(1/3)days 
b.  15 days 
c.  20 days 
d.  26 days 
Correct Answer:13(1/3)days
