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diff --git a/1208/CH9/EX9.11/Exa11.sce b/1208/CH9/EX9.11/Exa11.sce
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+//Exa 11

+clc;

+clear;

+close;

+// given data :

+SQa1=240//in Kgs

+AQa=280//in Kgs

+SPa=4//in rupees per Kgs

+APa=3.8//in rupees per Kgs

+SQb1=160//in kg

+AQb=120//in Kg

+SPb=3//in rupees per Kg

+APb=3.6//in rupees per Kg

+Loss=10;//in %

+//calculation of SQ for actual output

+StandardYield=(SQa1+SQb1)-((SQa1+SQb1)*Loss)/100;//in kg

+ActualYield=364;//in kg

+SQa=(SQa1*ActualYield)/StandardYield;// in kg

+SQb=(SQb1*ActualYield)/StandardYield;// in kg

+//(1)  Material cost variance

+MCVa=(SQa*SPa)-(AQa*APa);//in rupees

+MCVb=(SQb*SPb)-(AQb*APb);//in rupees

+//(2)  Material price variance

+MPVb=AQb*(SPb-APb);//in rupees

+MPVa=AQa*(SPa-APa);//in rupees

+//(4)  Material mix variance

+RSQa=(SQa1*400)/(400);

+RSQb=(SQb1*400)/(400);

+MMVa=SPa*(RSQa-AQa);

+MMVb=SPb*(RSQb-AQb);

+//(5)  Material Yield variance

+TotalSC=SQa1*SPa+SQb1*SPb;// in Rs

+TotalSQ=SQa1+SQb1-((SQa1+SQb1)*Loss)/100;//in Kg

+SCperunit=TotalSC/StandardYield;// in Rs

+RSY=(StandardYield*(400))/(400);

+MYV=SCperunit*(ActualYield-RSY);

+//material Price variance

+disp("material Price variances : ")

+disp(MPVa,"MPVa=");

+disp(MPVb,"MPVb=");

+disp(MPVa+MPVb,"Total MPV=");

+//material Mix variance

+disp("material mix variances :")

+disp(MMVa,"MMVa=");

+disp(MMVb,"MMVb=");

+disp(MMVa+MMVb,"Total MMV=");

+//material Yield variance

+disp("material Yield variances :")

+disp(MYV,"MYV=");

+//material Cost variance

+disp("material Cost variances :")

+disp(MCVa,"MCVa=");

+disp(MCVb,"MCVb=");

+disp(MCVa+MCVb,"Total MCV=");

+disp("Note :  ")

+disp("Negative variances indicate adverse value   ");

+disp("Positive variances indicate favourable value   ")
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