SOLUTION: Karl takes off on his bike riding 10 mph. One hour later, Kelly takes off after him riding 15 mph. How long will it take Kelly to catch Karl?
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Question 774105: Karl takes off on his bike riding 10 mph. One hour later, Kelly takes off after him riding 15 mph. How long will it take Kelly to catch Karl?
Answer by zkiya_(6) (Show Source): You can put this solution on YOUR website!
karl took on 10 m in 1 hour.
kelly took on 15 m in 1 hour.
so kelly caught on karl on 30 m in 2 hours.
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