Problema Solution
A child is running on a moving sidewalk in an airport. When he runs against the sidewalk's motion, he travels in seconds. When he runs with the sidewalk's motion, he travels in seconds. What is the rate of the child on a still sidewalk and what is the rate of the moving sidewalk?
Answer provided by our tutors
the phrase "he travels in seconds" occurs twice and in each instance there should be numeric information provided
not solvable, incomplete problem statement