Final answer:
When passing a 'School Zone' sign with children present, you should drive at or below the designated speed limit for that zone, typically around 20 to 25 miles per hour.
Step-by-step explanation:
When you pass a 'School Zone' sign and children are present, you should drive at or below the designated speed limit for that zone, which is typically a reduced speed. The exact speed limit can vary depending on local regulations, but it is usually around 20 to 25 miles per hour. This lower speed limit is to ensure the safety of the children who may be crossing the road or playing near the school.
Learn more about Speed limit in 'School Zones'