Question
4 friends rented 2 fishing rods from 9.10 p.m. to 10.50 p.m. and took turns to fish on them. At any time, 2 of them fished using the fishing rods while the other friends watched. If each of them had the same amount of time to fish, how many minutes did each friend get?
2 m

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4 friends rented 2 fishing rods from 9.10 p.m. to 10.50 p.m. and took turns to fish on them. At any time, 2 of them fished using the fishing rods while the other friends watched. If each of them had the same amount of time to fish, how many minutes did each friend get?