The distance between aerodromes A and B is 1000 Nautical Miles. At 09:00 an aircraft leaves for B with a speed of 300 Nautical miles per hour. At 09:30 another aircraft leaves for B from A with a speed of 400 Nautical miles per hour. At what approximate time will the second aircraft overtake the first aircraft?

Question

A. 10:55
B. 11:15
C. 10:42
D. None of the above

Answer 1

The speed difference is 100

The first plane has a 1/2 hour head start, during which it went 150 miles.

so, it will take 1.5 hours to catch up.

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