Answer to Question #38100 in C++ for noor-ul-ain-nasir

Question

Write a C++ program that calculates and displays water bill. The water rates vary depending on the type of usage.
 A code of ‘H’ means home use,
 A code of ‘C’ means commercial use,
 A code of ‘I’ means industrial use.
Any other code value should be treated as an INVALID INPUT. Water rates are computed as follows:
Code H:
First 1 hundred gallons for $5.00 and $0.005 for each additional gallon used
Code C:
First 4 hundred gallons for$1000.00 and $0.025 for each additional gallon used
Code I:
First 4 hundred gallons for $1500 and $0.125 for each additional gallon used