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+// A Textbook of Fluid Mecahnics and Hydraulic Machines - By R K Bansal
+// Chapter 2 - Pressure and its measurements
+// Problem 2.19
+
+//Given Data Set in the Problem
+dens=1000
+g=9.81
+sg_oil=0.8
+h1=20/100
+h2=30/100
+h3=30/100
+
+//calculations
+dens_oil=sg_oil*dens
+dl=h1+h2-h3
+//Pressure in left limb below X-X=pA-dens*g*h2
+//Pressure in left limb below X-X=pB-dens*g*h3-sg_oil*dens*h1
+pB_pA=dens*g*h3+sg_oil*dens*g*h1-dens*g*h2
+mprintf("The difference in the pressures is equal to %f N/m^2\n",pB_pA)