A and B complete a work in 6 days. A can alone can do it in 10 days. If both can together can do the work in how many days?  Pick one:	A) 7	B) 3.75	C) 2	D) 1	E) 8
1/6 + 1/10 = 8/30 = 4/15   15/4= 
<gadget id="calculator">15/4</gadget>
<output>15/4 = around 3.75</output>
3.75 days   ANSWER 3.75
<result>B</result>
A and B complete a work in 6 days. A can alone can do it in 10 days. If both can together can do the work in how many days?