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diff --git a/2471/CH6/EX6.2/Ex6_2.sce b/2471/CH6/EX6.2/Ex6_2.sce
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+clear ;
+clc;
+// Example 6.2
+printf('Example 6.2\n\n');
+printf('Page No. 142\n\n');
+
+// given
+v = 1.50;// velocity in m/s
+N_t = 100;// Number of tubes
+Do = 10*10^-3;// Internal diameter of tubes in metre
+m = 3.46;// mass flow rate in kg/s
+p = 1180;// density in kg/m^3
+
+A = (N_t*%pi*Do^2)/4;// otal cross-sectional area in m^2
+V = m/p;//Volumetric flow rate in m^3/s
+Fv = V/A;// Fluid velocity in m/s
+N_p = v/Fv;
+printf('the number of passes is %.0f',N_p)