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QUESTION
Julie drives 100 to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 25 and half the distance at 75 .
Julie drives 100 to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 25 and half the distance at 75 . On her return trip, she drives half the time at 25 and half the time at 75 . How long does the return trip take?
