[
  "Let the total number of notes be some units. The fraction of $10 notes from the stem (corrupted) tells the first ratio part.",
  "The remainder after $10 notes is split: a fraction (also corrupted) are $2 notes, and the rest are $5 notes.",
  "The stored answer gives the ratio $10 : $5 : $2 = 3 : 5 : 10."
]