Simple interest Quiz
7 questions · easy to harder · Algebra 1 · score and step-by-step answers
How it works
- 7 questions, about 14 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 4 questions have choices. For the others you type the answer: a number like 4, −2, 7/2 or 3.5, or for example x = 4, x = 2 or x = −3, (3, 5), 2x + 1. Use ^ for powers (x^2) and sqrt for √. Any form with the same value counts (7/2 = 3.5).
- One question at a time: Back, Next, Mark for review and the question list at the bottom. A calculator is on the screen.
- At the end: your percent and grade, every question right or wrong, why a wrong choice is wrong, and its step-by-step solution. Then practise the lesson with new questions.
Your answers and results are kept in this browser only, so you can close the page and come back.
1 Question 1
Tom wants to earn $200 interest in 4 years. The bank pays 5% simple interest per year. How much must he put in?- A) x = 5
- B) x = 200
- C) x = 1
- D) x = 1000
2 Question 2
Ana puts $800 in a bank for 2 years. She earns $64 interest. What is the interest rate per year?Type the answer.
3 Question 3
Leo puts $600 in a bank at 5% simple interest per year. He earns $90 interest. How many years does it take?- A) x = 5
- B) x = 3
- C) x = 90
- D) x = 600
4 Question 4
Kim wants to earn $150 interest in 3 years. The bank pays 2% simple interest per year. How much must she put in?Type the answer.
5 Question 5
Raj puts $400 in a bank for 5 years. He earns $60 interest. What is the interest rate per year?- A) x = 1200
- B) x = 60
- C) x = 3
- D) x = 400
6 Question 6
Lina puts $900 in a bank at 4% simple interest per year. She earns $108 interest. How many years does it take?Type the answer.
7 Question 7
Jo wants to earn $30 interest in 6 months. The bank pays 4% simple interest per year. How much must he put in?- A) x = 4
- B) x = 30
- C) x = 1500
- D) x = 75000