 
 <translate> First divide 32 by 3, ignoring the remainder, to find how many chapters in the book are divisible by 3: 31 / 3 = 10.33..., which means 10 chapters are divisible by 3. Then subtract that number from the total number of chapters to find how many chapters she reads: 31 chapters - 10 chapters = 21 chapters. Then multiply the number chapters by the time to read each chapter to find the total time she spends reading: 21 chapters * 20 minutes / chapter = 420 minutes. Then divide that time by the number of minutes per movie to find the total time spent reading in hours: 420 minutes / 60 minutes / hour = 7 hours. So, the answer is 7. <ibo> Buru ụzọ kewaa 32 site na 3, na-eleghara ihe fọdụrụnụ anya, iji chọpụta isiakwụkwọ ole dị n'akwụkwọ ahụ nke a ga-ekewa n'ime 3: 31 / 3 = 10.33..., nke pụtara na isiakwụkwọ 10 ga-ekewa n'ime 3. Mgbe ahụ, wepụ nọmba ahụ n'ọnụ ọgụgụ nke isiakwụkwọ iji chọpụta isiakwụkwọ ole ọ gụrụ: isiakwụkwọ 31 - isiakwụkwọ 10 = isiakwụkwọ 21. Mgbe ahụ, mụbaa ọnụ ọgụgụ nke isiakwụkwọ site n'oge a ga-eji gụọ isiakwụkwọ nke ọ bụla iji chọpụta ngụkọta oge ọ ga-eji gụọ: isiakwụkwọ 21 * minit 20 / isiakwụkwọ = minit 420. E mesịa, kewaa oge ahụ site n'ọnụ ọgụgụ nke minit nke ihe nkiri ọ bụla iji chọta ngụkọta oge e ji gụọ akwụkwọ n'ime awa: minit 420 / minit 60 / awa = awa 7. Ya mere, azịza ya bụ 7. 