I’ve attached my work...
Hope it helps! Have a nice day :)
200+40=240
each train cost 10
take 240/10=24trains
Hello there!
Sense this is a 360 degree angle, it is divide by 2. This would then be considered 180. If you (noticed) on the other side, it shows us that . . .

We then do (180-19)
C.
don’t actually put that
16. It's basically the problem you started with, but just reversed.