Firefighter Math · Question
Scenario 18: An air cylinder provides 45 minutes of air. If a firefighter uses 2/3 of the air, how many minutes of air are remaining?
If 2/3 of the air is used, then 1 - 2/3 = 1/3 of the air is remaining. Calculate 1/3 of the total air time: (1/3) * 45 minutes = 15 minutes. The correct answer
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Question: Scenario 18: An air cylinder provides 45 minutes of air. If a firefighter uses 2/3 of the air, how many minutes of air are remaining?
Answer options: ✅ 15 minutes
- 20 minutes
- 30 minutes
- 25 minutes
Correct answer: 15 minutes
Explanation: If 2/3 of the air is used, then 1 - 2/3 = 1/3 of the air is remaining. Calculate 1/3 of the total air time: (1/3) * 45 minutes = 15 minutes. The correct answer is "15 minutes". This capacity-fill scenario 18 reinforces the same competency for the firefighter-math bank and follows the certified explanation standard.
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