Mercury orbits at an average distance of about 5.79 × 107 km away from the Sun. Neptune orbits at an average distance of about 4.495 × 109 km away from the Sun. Approximately how many times farther is Neptune from the Sun than Mercury is?

Question

a 7.76
b 77.6
c 776
d 7,763

Answer 1

b 77.6

Neptune is approximately 77.6 times farther from the Sun than Mercury is.

To calculate this, you divide the average distance of Neptune from the Sun by the average distance of Mercury from the Sun:
4.495 × 10^9 km / 5.79 × 10^7 km ≈ 77.6