Answer;
= 75 mL
Explanation;
The SV is calculated by subtracting the ESV from the EDV. You are comparing the volume of the ventricle at its fullest to its emptiest.
Therefore;
Since diastolic volume is 135 mL/beat and systolic volume is 60 mL/beat
Thus; stroke volume = 135 mL/beat - 65 mL/beat
= 75 mL/beat