Question 69653
When the plane takes off it meets a plane coming in for landing. There must be another 6 planes already in the air(One of the six is just taking off at the same tiome as our plane).It will meet these as well. Each hour another plane will take off so in 6 hours this will be another 6 planes. The total planes met will be 13 with one of these being met as our plane takes off and the last one being met as it lands.