P can build a wall in 36 days, Q can build the same wall in 24 days. while R can build in 48 days. If they work together in how many days they will build wall?
1
536/49
2
440/37
3
144/13
4
368/56
P can build a wall in 36 days, Q can build the same wall in 24 days. while R can build in 48 days. If they work together in how many days they will build wall?