A can do a work in 6days. B can do in 12days. If both A&B are working together in how many days they can finish the work?	Choose the correct choice from the following choices:
A) 4	B) 5	C) 6	D) 10	E) 15
1day work of 4 = 1/6   1day work of B = 1/12   1day work of 4&amp;B = 1/6 + 1/12 = 1/4   4&amp;B finish the work in 4days   4nswer is 4
<result>A</result>
A can do a work in 6days. B can do in 12days. If both A&B are working together in how many days they can finish the work?