Two companies have just started a roundtheclock air taxi service between Rome and Milan. They use the same flight path and fly at constant speeds at different altitudes. Planes owned by the company AlphaAir take off from Rome every 10 minutes and take 90 minutes to reach Milan. Planes owned by the company BetaAir take off every 5 minutes and take 60 minutes to reach Milan. Captain Johnston, who flies for BetaAir, takes off from Rome 5 minutes after the previous AlphaAir flight has departed.
How many AlphaAir planes (flying from Rome to Milan) will Captain Johnston have passed as he lands in Milan?
IMAT 2013, question number 25
hey, this question has been answered before and by the way in both exam answer key and this solution it is mentioned that the correct answer is 3 flights. guess u made a typo .
hope to be helpful.