 
<translate> Mkpụrụ swiit ahụ dị dollar 20 - 11 = dollar 9. Ya mere, ọ na-akwụ 9 / 3 = $3 kwa swiiti. Azịza ikpeazụ ya bụ: 3. <eng> The candy cost 20 - 11 = $9. So he pays 9 / 3 = $3 per candy.
The final answer: 3. 