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diff --git a/3683/CH3/EX3.8/Ex3_8.sce b/3683/CH3/EX3.8/Ex3_8.sce
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+Bf=1400//width of flange, in mm
+Df=120//thickness of flange, in mm
+d=600//effective depth, in mm
+m=18.66//modular ratio
+Ast=4000//in sq mm
+M=160*10^6//in N-mm
+//Assume x>Df; equating moments of area on compression and tension sides about N.A.
+x=(m*Ast*d+Bf*Df^2/2)/(m*Ast+Bf*Df)//in mm
+//let sigma_cbc_dash=a*sigma_cbc
+a=(x-Df)/x
+//to find lever arm
+z=d-(1+2*a)/(1+a)*Df/3//in mm
+sigma_cbc=2*M/(Bf*Df*(1+a)*z)//in MPa
+sigma_st=m*sigma_cbc*(d-x)/x//in MPa
+mprintf("Stress in concrete=%f N/mm^2\nStress in tension steel=%f N/mm^2",sigma_cbc,sigma_st)
+//answer given in textbook is incorrect