Mathematics, 23.07.2021 22:00 gesteban

Lydia got her learners permit and helped her parents drive to her grandparent's house and back. It took one hour less time to get there than it did to get back. The average speed on the trip there was 60 km/hour. The average speed on the way back was 40 km/hour. How many hours did the trip there take?

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Lydia got her learners permit and helped her parents drive to her grandparent's house and back. It t...

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