James can finish a job in 20 dasy he worked for 10 days alone and completed the remaining part working with David 2 days how many days would both David and James together take to complete the entire job?	Options:  A) 4  B) 5  C) 10  D) 12  E) 14
Explanation:   James and David complete half work in 2 days   =&gt; they can complete whole work in 4 days   4nswer: Option 4
<result>A</result>
James can finish a job in 20 dasy he worked for 10 days alone and completed the remaining part working with David 2 days how many days would both David and James together take to complete the entire job?