If 1 kg of metal that has 25% zinc and the rest is copper is mixed with 5 kg of metal that has 40% zinc and the rest is tin. What is the ratio of three elements in the resulting mixture?

1
3 : 2 : 4 
2
3 : 1 : 5
3
3 : 1 : 4 
4
5 : 3 : 5
5
5 : 1 : 4 

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