So you think you’re pretty smart with your credit know-how? Got a good credit score and line of credit? Well here’s another number to watch, your credit card I.Q. Take this 10 question test and see how you stack up. Even I got a few of these wrong. For instance, “The typical American carries a balance of about $5,500 in credit card debt. If you make no more charges and pay only the minimum payment each month, how long will it take to pay that debt off at 19 percent interest?”

10 questions to test your credit card I.Q. [Philly.com via LowCards.com]

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