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A cat leaves a vacation spot traveling at 60 mph. Half and hour later , their friends leave from the same spot in a second car traveling at 75 mph. How long will it take the second car to catch up with
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A cat leaves a vacation spot traveling at 60 mph. Half and hour later , their friends leave from the same spot in a second car traveling at 75 mph. How long will it take the second car to catch up with their friends?

User Doug Stalter
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Time zero: cat leaves at 60 mph
Time 30 minutes: cat is 30 miles ahead, car leaves at speed=75 mph
Catch up speed = 75-60 =15 mph (assuming cat does not run out of breath.)
Time to catch up = distance / speed = 30 / 15 = 2 hours.

User Andy Long
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