A can do a work in 6 days , B can do a work in 8 days and C can do it in 12 days. B left work after 5 days. For how many number of days should A and C should work together to complete the remaining work ?
Choose the correct choice from the following
A) 1/2  B) 2/3  C) 3/4  D) 4/3  E) 5/2
b work 1/8 * 5=5/8   remaining work =1-5/8=3/8   a and c work together =1/6+1/12=3/12=1/4   take remaining work is done in =8/3 *1/4=2/3 days   ANSWER:2/3
<result>B</result>
A can do a work in 6 days , B can do a work in 8 days and C can do it in 12 days. B left work after 5 days. For how many number of days should A and C should work together to complete the remaining work ?