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Home Aptitude Time and Distance See What Others Are Saying!
  • Question
  • A man reaches his office 20 min late, if he walks from his home at 3 km per hour and reaches 30 min early if he walks 4 km per hour. How far is his office from his house ?


  • Options
  • A. 20 km
  • B. 16 km
  • C. 14 km
  • D. 10 km

  • Correct Answer
  • 10 km 

    Explanation

    Let distance = x km.
    Time taken at 3 kmph : dist/speed = x/3 = 20 min late.
    time taken at 4 kmph : x/4 = 30 min earlier
    difference between time taken : 30-(-20) = 50 mins = 50/60 hours.
    x/3- x/4 = 50/60
    x/12 = 5/6
    x = 10 km.

  • Tags: AIEEE, Bank Exams, CAT, GATE, GRE, Bank Clerk, Bank PO

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