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diff --git a/2021/CH19/EX19.12/EX19_12.pdf b/2021/CH19/EX19.12/EX19_12.pdf
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diff --git a/2021/CH19/EX19.12/EX19_12.sce b/2021/CH19/EX19.12/EX19_12.sce
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+//Finding of Head Discharge , Ratio of Power
+//Given
+Q1=0.035;
+H1=25;
+D1=0.5;
+N1=1200;
+D2=0.3;
+N2=2000;
+//To Find
+H=(D2*N2*sqrt(H1))/(D1*N1);
+H2=H^2;
+Q=(Q1*D2^3*N2)/(D1^3*N1);
+Pr=(D1/D2)^5*(N1/N2)^3;
+disp("Head ="+string(H2)+" meter");
+disp("Discharge ="+string(Q)+" m^3/sec");
+disp("Power Ratio ="+string(Pr)+" No Units");