Example 18: Calculate Utility Bill

Problem

An electricity utility company charges its customers on the following basis depending on the category they belong to and the units they have consumed for the month:

Category	Fixed Cost	Units Consumed / Load	Price
Residential	$50/month for 1-phase meter $200/month for 3-phase meter	0 to 100 units 101 to 300 units 301 to 500 units > 500 units	$3.76 / unit $7.21 / unit $9.95 / unit $11.31/ unit
Commercial	$220/ month	0 to 200 units > 200 units	$6.60 / unit $9.62 / unit
Industrial	$250 / month	0 to 20 KW > 20 KW	$5.43 / unit $6.88 / unit
Agricultural	$340 / month	0 to 5 HP > 5 HP	$258 /HP /month $360 /HP /month

Example

Input (Category)	Input (Meter)	Input (Units Consumed / Load)	Output
Residential	Three Phase Meter	345	3632.750000
Commercial	Nil	195	1507.000000
Industrial	Nil	22	401.359985
Agricultural	Nil	15	5740.000000

Try it yourself

Try to solve this question on your own in the code widget below. If you get stuck, you can always refer to the solution provided.

❗Note: To run your solution or our given solution, follow the following steps:

• Click on the run button.
• Wait for the 4 steps to complete, then switch to the terminal tab.
• In the terminal tab, write the following command:
  gcc main.c -o main
  Follow it with this command:
  ./main