Luke drove for n hours at 55 miles per hour. Luke's mother drove for n hours at a speed of 60 miles

Luke drove for n hours at 55 miles per hour. Luke's mother drove for n hours at a speed of 60 miles per hour. How much farther than Luke did his mother drive?

Distance = Rate * Time

• Luke drove: 55n
• Mom drove 60n

Distance difference = 60n - 55n = 5n