The ratio of Lily's age to Fanny's age is 1:2 now. In 9 years' time, the ratio of Lily's age to Fanny's age become 3:5. How old is Lily now?

L=1F=2L is half that of F

9 years later

L=3F=5

L is 60% that of L's ageI think it's 10 bc there has to be at least 9 years old

L - Lily's age now

F - Fanny's age now

L:F = 1:2

F=2L

(L+9) - Lily's age in 9 years

(F+9) = (2L + 9) - Fanny's age in 9 years

(L+9) : (2L + 9) = 3 : 5

5 (L+9) = 3 (2L + 9)

5L + 45 = 6L + 27

L = 18

Lily now is 18 years old.