sandy is waiting for the bus with her firend. there is a red line bus and freen line bus passing through her bus stop both lines just left from the stop at the dane time. the red line bus gets to the stop every 5 minutes. the green line bus gets to the stop every 6 minutes. if it's 5:00 pm right now, at what time will the red line and green line buses keave from the stop at the sane time again?