P027.c

Metadata

• Author — Amit Dutta
• Last updated — 12 Dec 2025
• License — MIT License (See the LICENSE file for details)

Problem Statement

Problem Statement

Purchase Discount on Discount on Amount Laptop Desktop -------- ----------- ----------- Upto 20k 3.0% 5.0% 20001 - 50k 5.0% 7.5% 50001 - 75k 7.5% 10.5% more than 75k 10.0% 15.0% WAP to input amount of purchase and type of purchase ('L' : laptop, 'D' : desktop) and display the discount amount and the discounted price (Net Amount).

Source Code

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#include <stdio.h>
#include <ctype.h>
int main()
{
    double principal_amount, desktop_discount, laptop_discount, discount_amount, discounted_price;
    char choice;
    printf("Enter the purchase amount : ");
    scanf("%lf", &principal_amount);
    printf("Type of purchase ('L' : Laptop, 'D' : Desktop) : ");
    scanf(" %c", &choice);
    choice = toupper(choice);
    if (principal_amount <= 20000)
    {
        laptop_discount = 0.03;
        desktop_discount = 0.05;
    }
    else if (principal_amount > 20000 && principal_amount <= 50000)
    {
        laptop_discount = 0.05;
        desktop_discount = 0.075;
    }
    else if (principal_amount > 50000 && principal_amount <= 75000)
    {
        laptop_discount = 0.075;
        desktop_discount = 0.105;
    }
    else if (principal_amount > 75000)
    {
        laptop_discount = 0.1;
        desktop_discount = 0.15;
    }
    switch (choice)
    {
    case 'L':
        discount_amount = principal_amount * laptop_discount;
        discounted_price = principal_amount - discount_amount;
        printf("\nDiscount Amount : %g"
               "\nDiscounted Price : %g",
               discount_amount, discounted_price);
        break;
    case 'D':
        discount_amount = principal_amount * desktop_discount;
        discounted_price = principal_amount - discount_amount;
        printf("\nDiscount Amount : %g"
               "\nDiscounted Price : %g",
               discount_amount, discounted_price);
        break;
    default:
        printf("\nInvalid Input.");
        return 1;
    }
    return 0;
}