Distance = (speed of light × round-trip time) / 2

Steps:

• Radio waves travel at the speed of light, c = 3.3 × 10⁵ km/s.
• Round-trip time t = 360 s.
• Round-trip distance = c × t = 3.3 × 10⁵ × 360 = 1.19 × 10⁸ km (rounded).
• One-way distance to Jupiter = round-trip distance / 2 = 5.94 × 10⁷ km.

Why A is correct:

• A matches the radar ranging formula d = (c t)/2, where the signal travels to Jupiter and back.

Why the others are wrong:

• B: This is the full round-trip distance c t, without dividing by 2.
• C: This results from using an incorrect value for c (e.g., too low) in the formula.
• D: Same as B, the round-trip distance instead of one-way.

Final answer: A