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diff --git a/629/CH3/EX3.12/ex3_12.txt b/629/CH3/EX3.12/ex3_12.txt
new file mode 100644
index 000000000..c8aabf416
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+++ b/629/CH3/EX3.12/ex3_12.txt
@@ -0,0 +1,4 @@
+ 
+ The tension in the cord = 0.110 N.
+
+ The mass of metal part = 17.8 grams.
+\ No newline at end of file
diff --git a/629/CH3/EX3.12/example3_12.sce b/629/CH3/EX3.12/example3_12.sce
new file mode 100644
index 000000000..6649b7e1a
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+clear
+clc
+//Example 3.12 BUOYANT FORCE ON A METAL PART
+//dimensions of wooden block
+l=50; //[mm]
+b=50; //[mm]
+h=10; //[mm]
+y=7.5; //submerged height[mm]
+V=l*b*y //volume of block submerged[mm^3]
+g_w=9800; //specific weight of water[N/m^3]
+Fb1=g_w*V*10^(-9) //buoyant force[N], (factor 10^(-9)m^3/mm^3)
+S1=0.3;
+V1=l*b*h //volume of block[mm^3]
+W1=g_w*S1*V1*10^(-9) //weight of block[N]
+T=Fb1-W1 //tension in cord[N]
+printf("\n The tension in the cord = %.3f N.\n",T)
+
+V2=6600; //volume of metal[mm^3]
+Fb2=g_w*V2*10^(-9) //buoyant force[N]
+//Equilibrium equation, W2-T-Fb2=0 
+g=9.81; //[m/s^2]
+W2=T+Fb2 //weight of metal[N]
+m2=W2*10^3/g //mass of metal[gm](factor 10^3g/1kg)
+printf("\n The mass of metal part = %.1f grams.\n",m2)
+\ No newline at end of file