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Discussion

  1. A and B are 20 km apart. A can walk at an average speed of 4 km/hr and B at 6 km/h. If they start walking towards each other at 7:000 am, when they will meet?
    1. 8:00 am
    2. 8:30 am
    3. 9:00 am
    4. 10:00 am
  1. Correct Option: C

    Suppose they will meet after T hours.
    Distance = Speed x Time
    Sum of distance traveled by them after T hours
    6T + 4T = 20 km
    T = 2 hours.
    So they will meet at 7:00 AM + 2 hours = 9:00 AM


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