when you purchase 40 songs you get 24 free song downloads. How many songs must you purchase in order to get 18 free song downloads

Respuesta :

24 free songs ← if you purchase 40 songs
  1 free song   ← if you purchase 40/24 = 1 2/3 songs
18 free songs ← if you purchase 1 2/3 x 18 = 5/3 x 18 = 30 songs.

Answer: 30 songs