Ram Walks 4 km North-West and then 3 km South-West, How far from Starting point

Ram walks 4 km north-west and then 3 km south-west. How far is he from his starting point?

  • 12 km
  • 7 km
  • 6 km
  • 5 km
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    Ram walks in north – west direction = 4 km

    and he walks in south – west direction = 3 km

    In figure – 

    RE: Ram Walks 4 km North-West and then 3 km South-West, How far from Starting point

    Triangle ABC is a right angle triangle

    AC2 = AB2 + BC2                                                                             (by Pythagoras theorem)
    AC2 = 32 + 42 = 9 + 16
    AC2 = 25
    AC = 5 km
    Hence, the distance between starting point and ending point is 5 km.

     

    Anurag Mishra Professor Answered on 30th May 2015.
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