The students go to the park to row boats. There are 60 people in total. They hire 16 boats. The big boat takes 4 people and the small boat takes 2 people. Each boat is full? Hypothesis method, equation method, list method and foot lifting method are all OK,

4X + 2Y = 60, x + y = 16, just untie it. Big boat 14. Small boat 2

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