Answer
Systolic blood pressure in kPa: $16\;kPa$
Diastolic blood pressure in kPa: $10.67\;kPa$
Work Step by Step
The reading of systolic blood pressure is: 120 mm of Hg (16 kPa)
and the reading of diastolic blood pressure is: 80 mm of Hg (11 kPa)
1 mm of Hg$=13600\times0.001\times9.81\;Pa=133.416\;Pa=0.133416\;kPa$
Therefore,
The reading of systolic blood pressure in kPa is: $120\times0.133416\;kPa=16\;kPa$
The reading of diastolic blood pressure in kPa is: $80\times0.133416\;kPa=10.67\;kPa$
