Answer:
It will take Jerry 3 hr 45 minutes to complete the work.
Step-by-step explanation:
Let Jerry takes x hours.
Carrie's rate = 1/2 case/hr
Jerry rate's = 1/5 case/h
We know that work done =rate x time
So, Carrie work + Jerry work = 1 job complete
[tex]\frac{1}{4} +\frac{x}{5} =1[/tex]
[tex]\frac{5+4x}{20} =1[/tex]
[tex]5+4x=20[/tex]
[tex]4x =20-5[/tex]
[tex]4x=15[/tex]
x = 15/4 = [tex]3\frac{3}{4}[/tex]
= 3 hr 45 minutes
Hence, it will take Jerry 3 hr 45 minutes to complete the work.
