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A child in an airport is able to cover 360 meters in 4 minutes running at a steady speed down a moving sidewalk in the direction of the sidewalk's motion. Running at the same speed in the direction opposite to the sidewalk's movement, the child is able to cover 204 meters in 3 minutes. What is the child's running speed on a still sidewalk, and what is the speed of the moving sidewalk?

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Solution Summary

This solution is comprised of a detailed explanation to answer what is the child's running speed on a still sidewalk, and what is the speed of the moving sidewalk.

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let child's running speed on a still sidewalk = x meter/minute
speed of the moving sidewalk = y meter/minute

360 ...

Solution provided by:
Sandhya Sharma, MSc
Education
  • BSc, Meerut University
  • MSc, Meerut University
  • MPhil, Institute of Advanced Studies
  • MSc, AIT
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