Question

Lily and Wilder live 810 miles apart. If they leave at the same time and drive towards each other with Lily driving at 55 mph and Wilder driving at 80 mph, after how many hours will they meet?

Answer 1

Given:

Distance between Lily and Wilder = 810 miles

They drive towards each other with Lily driving at 55 mph and Wilder driving at 80 mph.

To find:

After how many hours will they meet?

Solution:

Lily driving at 55 mph and Wilder driving at 80 mph towards each other. So, the relative speed is:

Relative speed
`=(55+80)\text{ mph}`

`=135 \text{ mph}`

We know that,

`Time=(Distance)/(Speed)`

`Time=(810)/(135)`

`Time=6`

Therefore, Lily and Wilder will meet after 6 hours.