Math Problem Statement
Given: amount of discount = $9.90, net price = $20.10. Question: what is the discount rate in percentage?
Solution
The discount rate in percentage is calculated using the formula:
Given:
- Discount Amount = $9.90
- Net Price = $20.10
Step 1: Find the Original Price
Step 2: Compute the Discount Rate
Final Answer:
The discount rate is 33%.
Would you like further details or a breakdown?
Here are five related questions you might find interesting:
- If the discount rate were increased to 40%, what would the new net price be?
- How do you calculate the selling price if a 33% discount is applied to any price?
- If tax is applied after the discount, how does it affect the final price?
- What is the relationship between markup and discount percentage?
- How would you determine the discount amount if only the original price and discount rate were given?
Tip: Always double-check percentage calculations by working backward to ensure accuracy.
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Math Problem Analysis
Mathematical Concepts
Percentage Calculation
Basic Arithmetic
Formulas
Discount Rate = (Discount Amount / Original Price) * 100
Original Price = Net Price + Discount Amount
Theorems
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Suitable Grade Level
Grades 7-9