Answer:
That is Correct: 130 miles.
Explanation:
This is a right triangle problem. The pythagorean theorem states that a^2+b^2 = c^2 (hypotenuse)
One side of the triangle is 120 miles (60*2), the other is 50 (50*1).
120^2+50^2 = x^2
16900 = x^2

130 = x