Question

Write a program to calculate the telephone bill by entering the no. of calls as argument in

following criteria.

Call Rate

First 100 Rs. 200 fixed

Next 100 Rs. 2/call

Next 100 Rs. 1.50/call

Above Rs. 1/call

also print bill​

Answer 1

Minimum Rs. 200 for up to 100 calls.

Plus Rs. 0.60 per call for next 50 calls.

Plus Rs. 0.50 per call for next 50 calls.

Plus Rs. 0.40 per call for any call beyond 200 calls.

Source Code

#include <stdio.h> int main() { int calls; float bill; printf("Enter number of calls :"); scanf("%d", &calls); if (calls <= 100) { bill = 200; } else if (calls > 100 && calls <= 150) { calls = calls - 100; bill = 200+(0.60 *calls); } else if (calls > 150 && calls <= 200) { calls = calls - 150; bill = 200+(0.60 *50) + (0.50 *calls); } else { calls = calls - 200; bill = 200 + (0.60 * 50) + (0.50 * 50) + (0.40 * calls); } printf("Your bill is Rs. %0.2f", bill); return 0; }

Output

Enter number of calls :350

Your bill is Rs. 315.00

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Answer 2

Explanation:

2020 · 1 to 100 units – Rs . 10/unit; 100 to 200 units – Rs. 15/unit; 200 to 300 units – Rs. 20/unit; above 300 units – Rs