You have just jumped into the ocean after your boat began to sink. Luckily, you found an air tank before you jumped. Unluckily, the air tank has been used. The gauge says there is now exactly 30,000mL of air left in the tank. In a panic, you take in the full inspiratory reserve volume each time you inhale. How many times can you inspire at this panicked volume before the tank runs out?
A)27 times
B) 6 and a half times
C)60 times
D)10 times

Question

You have just jumped into the ocean after your boat began to sink. Luckily, you found an air tank before you jumped. Unluckily, the air tank has been used. The gauge says there is now exactly 30,000mL of air left in the tank. In a panic, you take in the full inspiratory reserve volume each time you inhale. How many times can you inspire at this panicked volume before the tank runs out? 
A)27 times
B) 6 and a half times
C)60 times
D)10 times

Quizplus · Accepted Answer

The full inspiratory reserve volume for an average adult is about 3000mL. Therefore, with 30,000mL of air in the tank, you can take 30,000 / 3,000 = 10 full inspiratory reserve volume breaths before the tank runs out.

You Have Just Jumped into the Ocean After Your Boat