Answer :
Given:
The worker packed 3 pints every 5 minutes in the morning and 4 pints every 6 minutes.
To find the difference in pints per hour, let's find the hourly rate for both morning and afternoon.
Hourly rate in the morning is:
[tex]\frac{3}{5}\times\frac{60\min }{1hr}=\frac{180}{5}=\text{ 36 pints per hour}[/tex]Hourly rate in the afternoon:
[tex]\frac{4\text{ pints}}{6\text{ mins}}\times\frac{60\min s}{1hr}=\frac{240}{6}=40\text{ pints per hour}[/tex]The differnce between her morning and afternoon packing rates in pints per hour will be:
[tex]36\text{ - 40 = -4 (pints per hour)}[/tex]The differnce is 4 pints per hour
ANSWER:
4 pints per hour