Al-Jolson Airways runs a scheduled flight from Marseilles to Cairo, stopping at Palermo and Benghazi, every day. The plane takes off from Marseille at 08:00 and arrives at Palermo an hour later. After a 10-minute stop, it takes off again and then lands at Benghazi at 10:00, where it takes 10 minutes to refuel before taking off for Cairo. It finally lands in Cairo at 11:30. The aeroplane normally flies at 600 km/h, but on today's flight the pilot encountered turbulence and had to slow down to 500 km/h for 15 minutes. The plane was delayed in the approach to Cairo and had to circle at 300 km/h for 10 minutes before landing. Which of the following graphs best represents the airplane's speed during the journey?

Correct answer: B. Option B

A. Option A
B. Option B
C. Option C
D. Option D

Explanation

The correct graph should reflect the initial constant speed of 600 km/h, a reduction to 500 km/h for 15 minutes due to turbulence, and a final reduction to 300 km/h while circling for 10 minutes before landing. Option B accurately represents these speed changes. Options A, C, and D fail to capture one or more of these critical details, such as speed reductions or circling periods.

Last updated 3 September 2026

Related questions