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If a student had walked 1 …

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If a student had walked 1 kilometre per hour faster ,he would have taken 15 minutes less to walk 3 km. find the rate at which he was walking.
  • 1 answers

Gaurav Seth 6 years, 3 months ago

Q: If a student had walked 1 kilometre per hour faster ,he would have taken 15 minutes less to walk 3 km. find the rate at which he was walking.

Answer:

Let normal speed of a student be x km/h

d = 3 km

Time = distance / Time = 3/x hours

Ifa student had walked 1 km/h faster then his speed will be x + 1 km/h.

Time = 3/(x+1)

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