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Mr. Sam is raising chickens or ducks on his farm. All chickens eat the same amount of feed per week, and all ducks eat the same amount of feed per week. If 4 chickens and 20 ducks eat a total of 34.80 kg feed per week, and 16 chickens and 15 ducks eat a total of 41.70 kg feed per week, how much feed does a chicken and a duck eat respectively per week?

Chicken: kg

Duck: kg

Correct!