Practice - Total Amount A = P + I
Practice Questions
Test your understanding with targeted questions
What is the principal amount if A = $150 and I = $30?
💡 Hint: Subtract the interest from the total amount.
If you have $200 as principal and earn $50 in interest, what will be your total amount?
💡 Hint: Add the interest to the principal.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does the formula A = P + I represent?
💡 Hint: Consider what the equation describes.
True or False: If P = $100 and I = $20, then A = $120.
💡 Hint: Check the addition.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
If your total amount after 2 years is $500, and the interest earned in that time is $80, what was your principal?
💡 Hint: Think carefully about what each component means in this context.
A student takes a loan of $3,000 which incurs $450 as interest. If they plan to pay off the loan entirely, how much must they repay in total?
💡 Hint: Sum the loan and the interest paid to find the total repayment amount.
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Reference links
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