Question 586324
a fugitive leaves the scene of an accident traveling by car at an average speed of 80 miles per hour. the police arrive at the scene 15 minutes later (1/4 hour). they travel in the same direction as the fugitive at an average speed of 90 mph. how long will it take before the police catch the fugitive?
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In 1/4 hour, the fugitive is 20 miles away (80 mi/hr * 0.25 hr)
The cops' speed wrt the fugitive is 10 mi/hr (90 - 80)
20 mi/10 mi/hr = 2 hours