What is the formula for calculating Simple Interest?
Sales Tax, Discount, Commission, Gratuity & Simple Interest

Quiz
•
Mathematics
•
6th - 8th Grade
•
Easy
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Used 1+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Simple Interest (SI) = Principal (P) × Rate (R) × Time (T) / 100
Simple Interest (SI) = Principal (P) + Rate (R) + Time (T)
Simple Interest (SI) = Principal (P) × Rate (R) × Time (T) × 100
Simple Interest (SI) = (Principal (P) + Rate (R)) / Time (T)
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How do you calculate the original price of an item after a discount?
Original Price = Sale Price / (1 - Discount Rate)
Original Price = Sale Price * (1 + Discount Rate)
Original Price = Sale Price + Discount Amount
Original Price = Sale Price - Discount Amount
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How do you find the sale price of an item after applying a discount?
Sale Price = Original Price × (1 - Discount Rate)
Sale Price = Original Price + Discount Rate
Sale Price = Original Price - Discount Rate
Sale Price = Original Price ÷ (1 - Discount Rate)
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How do you convert a percentage discount into a decimal for calculations?
Multiply the percentage by 100.
Divide the percentage by 10.
Divide the percentage by 100 (e.g., 40% = 0.40).
Add 0.01 to the percentage.
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How do you calculate the total balance in an account after a period of time with Simple Interest?
Total Balance = Principal + (Principal × Rate × Time / 100)
Total Balance = Principal × (1 + Rate × Time)
Total Balance = Principal + (Rate × Time)
Total Balance = Principal × Rate × Time
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the definition of Principal in the context of Simple Interest?
Principal is the total amount of interest earned over time.
Principal is the initial amount of money invested or borrowed before interest.
Principal is the amount of money paid in fees for borrowing.
Principal is the final amount after interest has been added.
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the significance of the Tax Rate in financial calculations?
The Tax Rate determines how much tax is added to the original bill or price.
The Tax Rate is used to calculate the total revenue of a business.
The Tax Rate affects the interest rates on loans.
The Tax Rate is irrelevant to financial calculations.
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