Question 289181
NORTH
|\
| \
|X \(400)
|   \
|320 \
|     \
|______\EAST 
   Y
(HY)^2=(X)^2+(Y)^2
(400)^2=(380)^2+(Y)^2

Y=((400)^2-(320)^2)^1/2
Y=(57600)^1/2
Y=240

Therefore Ship Y has Travelled 240 miles