A can do a work in 9 days and B can do the same work in 18 days. If they work together, in how many days will they complete the work?
Pick one.
A) 6 days B) 7 days C) 5 days D) 3 days E) 2 days
One day's work of A and B = 1/9 + 1/8 = (2+1)/18 = 1/6 So, the time taken to complete the work is 6 days.   6 daysnswer:6 days
<result>A</result>
A can do a work in 9 days and B can do the same work in 18 days. If they work together, in how many days will they complete the work?