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Rahul's electricity bill for January was Rs. 120, and it increased to Rs. 150 in February. What is the percentage increase in his electricity bill from January to February?
- a)20%
- b)25%
- c)30%
- d)40%
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Rahuls electricity bill for January was Rs. 120, and it increased to R...
The percentage increase in Rahul's electricity bill from January to February can be calculated using the formula:
Percentage Increase = ((New Value - Old Value) / Old Value) × 100%
Substituting the given values:
Percentage Increase = ((150 - 120) / 120) × 100% = (30 / 120) × 100% = 25%
Percentage Increase = ((New Value - Old Value) / Old Value) × 100%
Substituting the given values:
Percentage Increase = ((150 - 120) / 120) × 100% = (30 / 120) × 100% = 25%
Most Upvoted Answer
Rahuls electricity bill for January was Rs. 120, and it increased to R...
Understanding Percentage Increase
To calculate the percentage increase in Rahul's electricity bill from January to February, we need to follow a straightforward formula.
Step 1: Identify the Values
- January Bill: Rs. 120
- February Bill: Rs. 150
Step 2: Calculate the Increase
- Increase in Bill = February Bill - January Bill
- Increase in Bill = Rs. 150 - Rs. 120 = Rs. 30
Step 3: Calculate the Percentage Increase
- Percentage Increase Formula:
(Increase / Original Value) × 100
Here, the original value is the bill amount for January.
Step 4: Apply the Values
- Percentage Increase = (Rs. 30 / Rs. 120) × 100
- Percentage Increase = 0.25 × 100 = 25%
Conclusion
The percentage increase in Rahul's electricity bill from January to February is 25%. Thus, the correct answer is option 'B'.
Summary of Calculation Steps
- Identify the original and new values.
- Calculate the difference between the two values.
- Use the formula for percentage increase.
- Substitute the values and calculate.
By following these steps, we can easily understand how to determine percentage increases in various scenarios, including bills, prices, and other financial metrics.
To calculate the percentage increase in Rahul's electricity bill from January to February, we need to follow a straightforward formula.
Step 1: Identify the Values
- January Bill: Rs. 120
- February Bill: Rs. 150
Step 2: Calculate the Increase
- Increase in Bill = February Bill - January Bill
- Increase in Bill = Rs. 150 - Rs. 120 = Rs. 30
Step 3: Calculate the Percentage Increase
- Percentage Increase Formula:
(Increase / Original Value) × 100
Here, the original value is the bill amount for January.
Step 4: Apply the Values
- Percentage Increase = (Rs. 30 / Rs. 120) × 100
- Percentage Increase = 0.25 × 100 = 25%
Conclusion
The percentage increase in Rahul's electricity bill from January to February is 25%. Thus, the correct answer is option 'B'.
Summary of Calculation Steps
- Identify the original and new values.
- Calculate the difference between the two values.
- Use the formula for percentage increase.
- Substitute the values and calculate.
By following these steps, we can easily understand how to determine percentage increases in various scenarios, including bills, prices, and other financial metrics.
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