Venus and Neptune take 8 hours 20 minutes and 10 hours 30 minutes, respectively, to complete one rotation. What is the ratio of their rotation times in simplest form?
Show answer & explanation
Correct answer: B
Explanation
8 hours 20 minutes = (8 × 60) + 20 = 500 minutes
10 hours 30 minutes = (10 × 60) + 30 = 630 minutes
Therefore, the ratio = 500 : 630
= 50 : 63