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Speed word problem

Kim starts to walk 3 miles to school at 7:30 a.m. with a temperature of 0 degrees F. Her brother Bryan starts t 7:45 a.m. on his bicycle traveling 10 mph faster than Kim. If they get to school at the same time, than how fast is each one traveling?

Solution Preview

let the speed of Kim be x then speed of Bryan will be x + 10

Time taken by Kim = 3/x

Time taken by Bryan = ...

Solution Summary

This provides an example of solving a word problem involving speed of people.