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Math problem of grade three 120 people take a boat, 6 people in 8 yuan and 4 people in 5 yuan. What is the most economical arrangement?
According to 8 yuan's explanation of six people, the per capita price is 8 yuan/six people =4/3 (RMB/person).
From four people to one in 5 yuan, the known per capita price is 5 yuan/four people = 5 /4 (RMB/person).
From 4/3 to 5/4
I know it is appropriate for everyone to take a boat with four people for five dollars.