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Questions and Answers
In calculating simple interest, what does the 'amount' refer to?
In calculating simple interest, what does the 'amount' refer to?
- The initial sum of money
- The total money after interest is added (correct)
- The money borrowed
- The interest earned
What is the formula to calculate simple interest?
What is the formula to calculate simple interest?
- (P + R + T)/100
- P x R x (1 + T)
- P x (1 + R x T)
- P x R x T (correct)
If the principal is $1000, the rate is 5%, and the time is 2 years, what is the simple interest earned?
If the principal is $1000, the rate is 5%, and the time is 2 years, what is the simple interest earned?
- $50 (correct)
- $150
- $100
- $200
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Study Notes
Simple Interest
- In calculating simple interest, the 'amount' refers to the final amount of money accumulated after interest has been added to the principal.
Calculating Simple Interest
- The formula to calculate simple interest is: Simple Interest (SI) = Principal (P) x Rate (R) x Time (T)
Example Problem
- If the principal is $1000, the rate is 5% (or 0.05), and the time is 2 years:
- The simple interest earned can be calculated using the formula: SI = $1000 x 0.05 x 2 = $100
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