MathematicsTwo men AA and BB start from a place PP walking at 3 km and 3.5 km an hour respectively. How many kilometers will they be apart at the end of 3 hours, if they walk in opposite directions?

Two men AA and BB start from a place PP walking at 3 km and 3.5 km an hour respectively. How many kilometers will they be apart at the end of 3 hours, if they walk in opposite directions?


  1. A
    13.5km
  2. B
    15.5km
  3. C
    17.5km
  4. D
    19.5km 

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    Solution:

    starting point of both men = p
    distance covered by men A in one hour = 3 km
    distance covered by men A in 3 hours = 3×3 = 9km
    similarly,
    distance covered by men B in one hour = 3.5km
    distance covered by men B in 3 hours = 3.5×3 =10.5km
    as men A and men B both covered their distance in opposite directions so we will add their distances to find out the distance between them.
    distance between men A and men B = 9+10.5 = 19.5km.
    So, Option 4 is correct.
     
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