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+//Exa 16

+clc;

+clear;

+close;

+// given data :

+STa=20;//in hours

+STb=25;//in hours

+ATa=30;//in hours

+ATb=15;//in hours

+SRa=3;//in Rs/Hour

+SRb=4;//in Rs/Hour

+ARa=3;//in Rs/Hour

+ARb=4.5;//in Rs/Hour

+//Labour Cost variance

+LCVa=(STa*SRa)-(ATa*ARa)

+LCVb=(STb*SRb)-(ATb*ARb)

+//Labour Efficiency variance

+LEVa=SRa*(STa-ATa);// in Rs

+LEVb=SRb*(STb-ATb);// in Rs

+//Labour Rate variance

+LRVa=ATa*(SRa-ARa);// in Rs

+LRVb=ATb*(SRb-ARb);// in Rs

+//Labour Mix variance

+TAMT=ATa+ATb;// total of actual mix time

+TSMT=STa+STb;// total of standard mix time

+RSTa=(STa*TAMT)/TSMT

+RSTb=(STb*TAMT)/TSMT

+LMVa=SRa*(RSTa-ATa);// in Rs

+LMVb=SRb*(RSTb-ATb);// in Rs

+disp("Labour Cost variance :")

+disp(LCVa,"Labour Cost variance LCVa: ")

+disp(LCVb,"Labour Cost variance LCVb: ")

+disp(LCVa+LCVb,"Labour Cost variance :")

+disp("Labour Efficiency variance :")

+disp(LEVa,"Labour Efficiency variance LEVa: ")

+disp(LEVb,"Labour Efficiency variance LEVb: ")

+disp(LEVa+LEVb,"Labour Efficiency variance :")

+disp("Labour Rate variance :")

+disp(LRVa,"Labour Rate variance LRVa: ")

+disp(LRVb,"Labour Rate variance LRVb: ")

+disp(LRVa+LRVb,"Labour Rate variance :")

+disp("Labour Mix variance :")

+disp(LMVa,"Labour Mix variance LMVa: ")

+disp(LMVb,"Labour Mix variance LMVb: ")

+disp(LMVa+LMVb,"Labour Mix variance :")

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

+disp("Positive variances indicate favourable value   ");
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