A. 380mmHg
B. 570mmHg
C. 190mmHg
D. 480mmHg
Correct Answer:
Option B – 570mmHg
Explanation
(p – 760)/(0 – 760) = (h – 0)/(80 – 0)
∴ (p – 760)/-760 = (20 – 0)/80
80(p-760) = -760(20-0)
∴80p – 60800 = -15200
80p = 60800 – 15200
80p = 45600
∴ p = 45600/80
p = 570mmHg
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