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How many hours will a car traveling at 45 miles per hour take to catch up with a car traveling at 30 miles per hour if the slower car starts one hour before the faster car?
Wiki User
∙ 11y ago
After 1 hour the slower car will be 30 mph x 1 hour = 30 miles ahead of the faster car.
The faster car is travelling 45 mph - 30 mph = 15 mph faster than the slower car and so will cover this 30 miles in 30 miles ÷ 15 mph = 2 hours at which point it will have caught the slower car and start to over take it.
Wiki User
∙ 11y ago
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