For every 10 swimmers, how many team members are required?

• A. 0
• B. 2
• C. 3
• D. 1

Answer: (D)

Supervision depends on ratios: one team member for every ten swimmers. This ensures there’s enough oversight and a quick response if help is needed. So with exactly ten swimmers, one team member is required. If you have more swimmers, you’d scale up accordingly (twenty swimmers would need two team members, and so on). When the group isn’t a full ten, you still round up to maintain safety, meaning you always use the ceiling of swimmers divided by ten. That’s why the correct rule gives one team member per ten swimmers.