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// Exa 2.2
// To find usage in call-seconds,CCS(centrum call seconds) and Erlangs).
clc;
clear all;
Ht=5; //Average holding time in seconds
PC=450; // Peg count for one hour period
OC=0; // Overflow count
// solution
// usage(Erlangs)=(peg count- overflow count)*Average holding time(in hrs)
U=(PC-OC)*(5/3600);
printf('Usage = %.3f Erlangs = ',U);
// IN CCS
Uccs=U*36; // usage in CCS
printf('%.1f CCS = ',Uccs);
Ucs=Uccs *100; //usage in call-seconds
printf('%d call-seconds\n',Ucs);
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