Verified answer

Vamos là.

usaremos o teorema de Tales.

12/(48 - 12) = x/y

x + y = 60

12/36 = x/y

12x = 36y

36x + 36y = 2160

12x - 36y = 0

48x = 2160

x = 2160/48 = 45

45 + y = 60

y = 60 - 45 = 15

45/12 = 60/48