[填空题]
Landmarks are placed aoenbwz*pbg tk c.0pl7/0vguo1 1me.9long the road from London to Edinburgh 4zaayt/9f je6 njg* glk81qn;and the distance between;n qgza8 ey nt4fjjlk1/ a6g9* each landmark is 16.1 $\mathrm{~km}$ . The first landmark placed on the road is 124.7 $\mathrm{~km}$ from London, and the last landmark is near Edinburgh. The length of the road from London to Edinburgh is 667.1 $\mathrm{~km} $.
1. Find the distance between the fifth landmark and London.
2. Determine how many landmarks there are along the road.
