A and B complete a work in 8 days. A alone can do it in 12 days. If both together can do the work in how many days? Choose the correct choice from the following answers:
A) 3.75 days	B) 3.99 days	C) 2.99 days	D) 4.8 days	E) 2.44 days
1/8 + 1/12 = 5/24   24/5= 
<gadget id="calculator">24/5</gadget>
<output>24/5 = around 4.8</output>
4.8 days   Answer: 4.8 days
<result>D</result>
A and B complete a work in 8 days. A alone can do it in 12 days. If both together can do the work in how many days?