3 men can finish a work in 10 days, 4 women can finish it in 12 days and 10 qualified workers can finish it in 6 days. In how many days is the work finished by 4 men, 4 women and 4 qualified workers, working together every day?
1
\(\frac{30}{19}\)
2
\(\frac{60}{17}\)
3
\(\frac{45}{17}\)
4
\(\frac{60}{19}\)