Write a program in java to input number of water units consumed and compute the
total bill amount according to following slab-
Number of units Rate per unit
First 150 Rs 250/=
Next 175 Re 1.00 per unit
Next 150 Rs 1.75 per unit
Above 475 Rs 2.25 per unit
Answers
Answer:
Program to calculate Electricity Bill
Difficulty Level : Basic
Last Updated : 08 Nov, 2021
Given an integer U denoting the amount of KWh units of electricity consumed, the task is to calculate the electricity bill with the help of the below charges:
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. 25/unit
Examples:
Input: U = 250
Output: 3500
Explanation:
Charge for the first 100 units – 10*100 = 1000
Charge for the 100 to 200 units – 15*100 = 1500
Charge for the 200 to 250 units – 20*50 = 1000
Total Electricity Bill = 1000 + 1500 + 1000 = 3500
Input: U = 95
Output: 950
Explanation:
Charge for the first 100 units – 10*95 = 950
Total Electricity Bill = 950
Recommended: Please try your approach on {IDE} first, before moving on to the solution.
Approach: The idea is to identify the charge bar in which it falls and then calculate the bill according to the charges mentioned above. Below is the illustration of the steps:
Check units consumed is less than equal to the 100, If yes then the total electricity bill will be:
\text{Total Electricity Bill} = (\text{units} * 10)
Else if, check that units consumed is less than equal to the 200, if yes then total electricity bill will be:
\text{Total Electricity Bill} = (100*10) + (\text{units}-100) * 15
Else if, check that units consumed is less than equal to the 300, if yes then total electricity bill will be:
\text{Total Electricity Bill} = (100*10) + (100*15) + (\text{units}-200) * 20
Else if, check that units consumed greater than 300, if yes then total electricity bill will be:
\text{Total Electricity Bill} = (100*10) + (100*15) + (100*20) + (\text{units}-300) * 25
Explanation: