Problem Solving (PS) | Two buses, A and B, are going from city P to city Q and back without a

Two buses, A and B, are going from city P to city Q and back without a break. Bus A starts from city P and is moving at constant speed of 50km/h, while bus B starts from city Q and is moving at constant speed of 20km/h. If the distance between the cities is 1,400 km, how far will bus A be from city Q when the buses meet for the 22nd time?

A. 400 km
B. 800 km
C. 1,000 km
D. 1,200 km
E. 1,400km


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