A and B can do a piece of work in 6 2/3 days and 5 days respectively. They work together for 2 days and then A leaves. In how many days after that B will complete the work alone. Pick:	A) 5 days	B) 18 days	C) 1 ½ days	D) 25 days	E) 69 days
Explanation:   3/20 * 2 + (2 + x)/5 = 1   x = 1 ½ days   Answer 1 ½ days
<result>C</result>
A and B can do a piece of work in 6 2/3 days and 5 days respectively. They work together for 2 days and then A leaves. In how many days after that B will complete the work alone.