Question

What is the normal reading of human blood pressure ?

1 100-60 mm/ hg

2 120-80 mm/ hg

3 180-12 mm/ hg

4 100-50 mm/ hg​

Answer 1

Answer:

2.120-80 mm/ hg

Explanation:

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Answer 2

Answer:

second no. 120-80mm/hg