N at a speed of 20km/h reaches his office 10 mins late. Next time he increases his speed by 5km/hr, but is still late by 4 mins. What is the distance of office from his house? :/

Any easy method to solve this thing??

  • Aveek
  • 27 अप्रैल
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Your Answer

x/20 - x/25 = 6/60 because x is distance 20 and 25 are two speeds given and since the time difference is 6 min (10-4) so 6/60 in minutes rest you can solve yourself :)

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