Question
The total number of gyozas produced by Machine X and Machine Y was 424. The total number of gyozas produced by Machine X and Machine Z was 379. The total number of gyozas produced by Machine Y and Machine Z was 487. Find the average number of gyozas produced by 3 machines.
3 m

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The total number of gyozas produced by Machine X and Machine Y was 424. The total number of gyozas produced by Machine X and Machine Z was 379. The total number of gyozas produced by Machine Y and Machine Z was 487. Find the average number of gyozas produced by 3 machines.