https://m4maths.com/6478-A-can-do-a-work-in-12-days-When-he-had-worked-for-3-days-B-joined-him-If-they.html

• A's one day work is 112 ..when B join they complete work in 3 days means their one days work is 13.....
  (A+B)=13
  A=112..
  B=?
  
  B=4days..
• 3 years agoHelpfull: Yes(0) No(0)