What is the Distance from his School to House? If

If a student walks from his house to school at 5 km/hr, late by 30 minutes. However, if he walks at 6 km/hr, he is late by 5 minutes only. The distance of his school from his house is:

  1. 2.5 km
  2. 3.6 km
  3. 5.5 km
  4. 12.5 km
vijay Professor Asked on 2nd August 2015 in Maths.
Add Comment
1 Answer(s)

Answer: (4) 12.5 km
Explanation:-
Let the distance be X km.
According to the question,
X/5 + 30/60 = X/6 + 5/60
X/5  – X/6 = 1/12 – 30/60
X(6 – 5)/30 = (5 – 30)/60
X/30 = – 25/60
X = – 25 x 30/60
X = – 12.5 km
X = 12.5 km                (As we know that the distance is always positive)
Hence, the answer is (4) 12.5 km.

Anurag Mishra Professor Answered on 2nd August 2015.
Add Comment

Your Answer

By posting your answer, you agree to the privacy policy and terms of service.