time=task/rate
timetogether=8hrs
timaA=timeB+2
joint time=timea+timeB=2timeb+2
8hours=2timeb+2 so solve for time B
Two companies working together can clear a parcel of land in 8 hrs. Working alone, it would take company A 2 hrs longer than company B. How long it would take company B to clear the parcel of land alone?
1 answer