A and B complete a work in 4 days. A alone can do it in 8 days. If both together can do the work in how many days?  Choose the most appropriate option.
A) 3.75 days	B) 3.78 days	C) 3.25 days	D) 3.15 days	E) 2.7 days
1/4 + 1/8 = 3/8   8/3 = 2.7 days   Answer: 2.7 days
<result>E</result>
A and B complete a work in 4 days. A alone can do it in 8 days. If both together can do the work in how many days?