Question

Towns X, Y, and Z are on the same straight road. Town Y is between Town X and Town Z. Town X is 57 miles from Town Z, and Town Y is 28 miles from Town Z. What is the distance from Town X to Town Y?

Answer 1

draw a diagram (see attachment)


so duh, XY+YZ=XZ
XZ=57
YZ=28
so

XY+28=57
minus 28 both sides
XY=29


the distance is 29 miles