As given the two quantities given are pressure units
the relation between psi and in Hg is
1 psi = 2.04 inch mercury
Or
0.491 psi = 1 inch mercury
the problem can be solved by unit factor label method
the unit factor for the two units will be
[tex]\frac{1 in Hg}{0.491 psi} = 1 = \frac{0.491 psi}{1 in Hg}[/tex]
We have to convert 43 in Hg to psi so we will use following conversion factor
43 in Hg = 43 X 0.491 psi = 21.11 psi pressure
