Gauge pressure question - please help I came across this multiple choice question while revising for my exams but I can't get any of the chioces. I've spent over an hour on this but can't figure out. Can someone please help me because it's starting to annoy me. What is the gauge pressure at a depth of 6cm in a glass filled with 4cm of mercury and 4cm of water? Water has a density of 1000kg/m^3, and mercury has a density 13.6 times as great. (a)3.1kPa (b)5.6kPa (c)5.8kPa (d)310kPa (e)560kPa Any help will be great.