Question

Normal range of breathing rate per minute in an average adult person at rest is:
(i) 9–12(ii) 15–18
(iii) 21–24 (iv) 30–33

Answer 1

Yo!
Here's your answer!
It's 15-18 breaths per minute.
Hope that this helps you!
-TGA.

Answer 2

"Normal range of breathing rate per minute in an average adult person at rest is

ii) 15- 18

A normal and healthy adult has 15- 18 breaths per minute.

The quiet respiratory rhythm is set by the respiratory center at around two seconds for an inhalation and three seconds for exhalation as a result of which the lower of the average rate of respiration is 15 breaths per minute.

"