The incomes of P, Q and R are in the ratio of 9 ∶ 15 ∶ 10 and their savings are in the ratio is 10 ∶ 15 ∶ 12. If R spends 60% of his income, what is the ratio of the expenditures of P, Q and R?
1
18 ∶ 17 ∶ 30
2
17 ∶ 30 ∶ 18
3
17 ∶ 18 ∶ 30
4
18 ∶ 30 ∶ 17