A contractor must hire 6 men and 8 boys for 6 days to do the same piece of work as 8 men and 15 boys could do in 4 days. Compare the efficiency ratio of the men and the boys.

1
5 ∶ 1
2
4 ∶ 1
3
1 ∶ 2 
4
3 ∶ 1 
5
None of these

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