Andre visit the library. It takes Andre 26 minutes to walk from his house to the library. He stay at the library 45 minutes. His mother drive him home which takes 15 minutes. How many more minutes does Andre spend at the library than traveling to and from the library.

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Andre spends 4 minutes more at the library that he does travelling to and from the library combined. 45 minutes at the library minus 26 minutes to walk there minus 15 minutes to drive back. 26+15=41.  45-26-15=4 or 45-41=4.

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