Answer:
The answer is "3 hours and 28 minutes".
Step-by-step explanation:
Calculating the total sentence:
[tex]= 19 \ pages \times 140 \ sentences \\\\= 2,660 sentences\\\\[/tex]
Calculating the minutes which is needed:
[tex]= 2,660 \div 16 \\\\ = 166.25 \ minutes\\\\[/tex]
Calculating the hours and minutes:
[tex]= 166.25 \div 60 \\\\=3 \ hours \ and \ 28 \ minutes[/tex]