1.

Write a program to computerize the billing operation of a telephone company:The bill has to be generated based on the following conditions:Number of callsFirst 50.callsAmount per callfreeNext 100 calls50 paise per callNext 200 calls80 paise per callRest of the calls*1.20 per callA rent of Rs.150 is charged is charged from every customer. A tax of 15% is charged onthe sum of charges and rent.The total amount is tax added to the sum of charges and rent. Print the bill for a customer.​

Answer»

The following co‎des have been written using Python.

while True:

   c = int(INPUT("Enter the number of calls: "))

   print()

   if c <= 50:

      a = 0

   elif c <= 100:

       a = 0.50*c

   elif c <= 200:

       a = 0.80*c

   elif c > 200:

       a = 1.20*c

   print(a, "is your cost.")

   print("A RENT of Rs 150 and a tax of 15% will be charged.")

   a = a + 150

   a = a + (a*0.15)

   print()

   print(a, "is your total cost.")

   print()

   ch = input("NEXT CUSTOMER? [Y/N]: ")

   if ch in "Nn":

       break



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