how find  ??

Solution. 
the correct option is 3) 3000 ml, 1500 ml. 
Inspiratory capacity is the total volume of air that can be inhaled during deep breathing after normal respiration. 
It's sum of TV and IRV that is equal to 3000 ml
Expiratory capacity is the total volume of air that can be exhaled during forceful exhalation after normal inhalation or breathing. 
It's the sum of TV and ERV that is equal to 1500 ml. 

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