Nigel walks x miles due west, turns 150° to his left and walks 3 miles in the new direction. If he finishes at a point 2 miles from his starting point, then x is:
- 13/10
- 39/10
- 1.5√3
- not uniquely determined by the given information.
![](/odmp/files/2019/08/3155-21img1.gif)
At this point, Nigel is 2 miles from his starting point.
Ack! There are two possible starting points, look:
![](/odmp/files/2019/08/3155-21img2.gif)
So, we can’t tell. It’s (d).