A mail order house sells five different products whose retail prices are: produc

Question

A mail order house sells five different products whose retail prices are:

product 1: $2.98

product 2: $4.50

product 3: $9.98

product 4: $4.49

product 5: $6.87.

Write a program that reads a series of pairs of numbers as follows:

a) product number

b) quantity sold

Your program should use a switch statement to determine the retail price for each product. Your program should calculate and display the total retail value of all products sold. Use a sentinel-controlled loop to determine when the program should stop looping and display the final results.  

Explanation / Answer

#include int main(void){ int type=0; int quantity; double total=0; printf("Enter pairs of item numbers and quantities. "); printf("Enter -1 for the item number to end input. "); while(type!=-1){ scanf("%d %d",&type,&quantity); switch(type){ case 1: total=total+quantity*2.98; break; case 2: total=total+quantity*4.50; break; case 3: total=total+quantity*9.98; break; case 4: total=total+quantity*4.49; break; case 5: total=total+quantity*6.87; break; default: printf("type is wrong:try again "); break; } } printf("Sum of the purchases is :%lf",total); }

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