Question 24: A person travels from A to B at a speed of 15km/h. After 1h30min, the second person also leaves A and goes back to B, with a speed of 20km/h and arrives at B 30 minutes before the first person. Calculate the distance AB.

Question 24: A person travels from A to B at a speed of 15km/h. After 1h30min, the second person also leaves A and goes back to B, with a speed of 20km/h and arrives at B 30 minutes before the first person. Calculate the distance AB. A. 120 (km). B. 150 (km). C. 100 (km). […]

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