What is the solution to an open tube manometer problem?

To solve an open tube manometer problem, you need to calculate the pressure difference between the two points being measured. This can be done by using the equation P1 - P2 gh, where P1 and P2 are the pressures at each point, is the density of the fluid in the manometer, g is the acceleration due to gravity, and h is the height difference between the two fluid levels in the manometer. By rearranging the equation and plugging in the known values, you can find the solution to the problem.