It takes 2.25 hours to shovel off 3 driveways.
Let;s find how long it will take them to shovel 1 driveway.
We have:
2.25 hours = 3 driveways
x hours = 1 driveway
Cross multiply and solve for x:
[tex]x=\frac{2.25\ast1}{3}=0.75[/tex]Therefore, it will take them 0.75 hours to shovel 1 driveway.
ANSWER:
0.75 hours
