Answer:
630 people could ride the Ferris wheel in 6 hours.
Explanation:
First, let's find the people-per-hour amount:
Since there are 3 "20 minutes" in an hour, we multiply the amount it can accommodate by 3 as well:
35 * 3 = 105
Next, since we have 6 hours, we multiply our people-per-hour by 6:
105 * 6 = 630 people in 6 hours, final answer.