Two persons A and B start moving at each other from point P and Q respectively which are 1400 Km apart

Two persons A and B start moving at each other from point P and Q respectively which are 1400 Km apart

Two persons A and B start moving at each other from point P and Q respectively which are 1400 Km apart. Speed of A is 50 Km/hr and that of B is 20 Km/hr. How far is A from Q when he meets B for the 22nd time?

  1. 1000 km
  2. 400 km
  3. 800 km
  4. 1400 km
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