On average, how many breaths per minute does an adult take?

• A. 8-12
• B. 12-15
• C. 16-20
• D. 20-25

Answer: (B)

The main concept is the resting respiratory rate for adults. A healthy adult at rest typically averages about 12 to 20 breaths per minute. Among the given options, the range of 12 to 15 breaths per minute best represents a common, concise average used in many clinical references and exams, since it sits within the normal range and reflects a calm resting state. The other ranges are either too low, too high, or only partially within the normal span. Remember that the rate can vary with factors like activity, fever, anxiety, pain, or illness, but at rest in a healthy adult, around a dozen to fifteen breaths per minute is a good practical reference.