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#include<iostream>
using namespace std;
int main(){
double i,t,o,c,totalDiscount,amountDue, quantityOfI,quantityOfT,quantityOfO,quantityOfC,discountOfI,discountOfT,discountOfO,discountOfC;
double amountDueOfI,amountDueOfT,amountDueOfO,amountDueOfC;
i=39.9;
t=29.9;
o=49.9;
c=59.9;
cout<<"Please insert the quantity of I"<<endl;
cin>>quantityOfI;
if (2<=quantityOfI<=5){
discountOfI= i*0.05*quantityOfI;
}
else if (6<=quantityOfI<=10){
discountOfI= i*0.1*quantityOfI;
}
else if (11<=quantityOfI<=15){
discountOfI=i*0.15*quantityOfI;
}
else if (16<=quantityOfI<=20){
discountOfI=i*0.2*quantityOfI;
}
else if (quantityOfI>=21){
discountOfI=i*0.25*quantityOfI;
}
else {
cout<<"pleasr type again."<<endl;
}
amountDueOfI = (i*quantityOfI)-discountOfI;
cout<<"Discount is "<<discountOfI<<endl;
cout<<"Amount is "<<amountDueOfI<<endl;
cout<<"Please insert the quantity of T"<<endl;
cin>>quantityOfT;
if (2<=quantityOfT<=5){
discountOfT= t*0.05*quantityOfT;
}
else if (6<=quantityOfT<=10){
discountOfT= t*0.1*quantityOfT;
}
else if (11<=quantityOfT<=15){
discountOfT=t*0.15*quantityOfT;
}
else if (16<=quantityOfT<=20){
discountOfT=t*0.2*quantityOfT;
}
else if (quantityOfT>=21){
discountOfT=t*0.25*quantityOfT;
}
else {
cout<<"pleasr type again."<<endl;
}
amountDueOfT = (t*quantityOfT)-discountOfT;
cout<<"Discount is "<<discountOfT<<endl;
cout<<"Amount is "<<amountDueOfT<<endl;
cout<<"Please insert the quantity of O"<<endl;
cin>>quantityOfO;
if (2<=quantityOfO<=5){
discountOfO= o*0.05*quantityOfO;
}
else if (6<=quantityOfO<=10){
discountOfO= o*0.1*quantityOfO;
}
else if (11<=quantityOfO<=15){
discountOfO=o*0.15*quantityOfO;
}
else if (16<=quantityOfO<=20){
discountOfO=o*0.2*quantityOfO;
}
else if (quantityOfO>=21){
discountOfO=o*0.25*quantityOfO;
}
else {
cout<<"pleasr type again."<<endl;
}
amountDueOfO = (o*quantityOfO)-discountOfO;
cout<<"Discount is "<<discountOfO<<endl;
cout<<"Amount is "<<amountDueOfO<<endl;
cout<<"Please insert the quantity of C"<<endl;
cin>>quantityOfC;
if (2<=quantityOfC<=5){
discountOfC= c*0.05*quantityOfC;
}
else if (6<=quantityOfC<=10){
discountOfC= c*0.1*quantityOfC;
}
else if (11<=quantityOfC<=15){
discountOfC=c*0.15*quantityOfC;
}
else if (16<=quantityOfC<=20){
discountOfC=c*0.2*quantityOfC;
}
else if (quantityOfC>=21){
discountOfC=c*0.25*quantityOfC;
}
else {
cout<<"pleasr type again."<<endl;
}
amountDueOfC = (c*quantityOfC)-discountOfC;
cout<<"Discount is "<<discountOfC<<endl;
cout<<"Amount is "<<amountDueOfC<<endl;
totalDiscount = discountOfI + discountOfT + discountOfO + discountOfC;
amountDue = amountDueOfI + amountDueOfT + amountDueOfO + amountDueOfC;
cout<<"The total discount is "<<totalDiscount<<endl;
cout<<"The amount due is "<<amountDue<<endl;
return 0;
}
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