Percent Quiz
10 questions · easy to harder · Foundations · score and step-by-step answers
How it works
- 10 questions, about 20 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 5 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. No calculator: work it out on paper.
- 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
6 is 50% of what- A) 1200
- B) 3
- C) 12
- D) 50
2 Question 2
8 is 20% of whatType the answer.
3 Question 3
50% of what number is 14- A) 28
- B) 2800
- C) 50
- D) 7
4 Question 4
12 is 30% of whatType the answer.
5 Question 5
24 is 40% of what number- A) 12
- B) 40
- C) 60
- D) 485
6 Question 6
21 is 70% of whatType the answer.
7 Question 7
63 is 90% of what- A) 7
- B) 90
- C) 56710
- D) 70
8 Question 8
7 is 35% of whatType the answer.
9 Question 9
15 is 125% of what- A) 3
- B) 12
- C) 754
- D) 125
10 Question 10
5 is 12.5% of whatType the answer.