Quiz: Practice Questions Based on Concept of Ratio (set 1)

This quiz contains questions designed to test your understanding of the concept of ratios, as explained in the video on this page. These questions are primarily intended for middle schoolers, but others are also welcome to take the quiz to assess their understanding of ratios. Please avoid using external resources to assist in solving the questions. If your answers are incorrect, you can retake the quiz and try to get them all correct. The difficulty level ranges from basic to medium. If you notice any errors in the questions or answers, please leave a comment. Enjoy the quiz!

1. 
Write the ratio of 12 apples to 8 oranges in its simplest form.

2. 
The ratio of boys to girls in a class is 5:7. If there are 35 girls, how many boys are there?

3. 
A school has 120 students, out of which 80 play sports. What is the ratio of students who play sports to those who don’t?

4. 
In a zoo, the ratio of lions to tigers is 3:2. If there are 12 lions, how many tigers are there?

5. 
In a garden, the ratio of rose plants to sunflower plants is 9:5. If there are 54 rose plants, how many sunflower plants are there?

6. 
The angles of a triangle are in the ratio 3:4:5. Find the measure of each angle.

7. 
The ratio of three numbers is 2:3:5, and their sum is 200. Find each number.

8. 
\$400 is divided among three people in the ratio 3:5:7, with $10 left over. How much does each person get?

9. 
A shopkeeper mixes two types of rice in the ratio 3:7. The cost of the first type is \$3 per kg, and the second type is \$5 per kg. What is the price per kg of the mixture?

10. 
Two runners, X and Y, have speeds in the ratio 5:7. If X takes 40 minutes to complete a race, how long will Y take?

11. 
The ratio of the ages of two people is 4:7, and the difference in their ages is 18 years. What are their ages?

12. 
A 40-liter mixture contains milk and water in the ratio 7:3. How much water should be added to make the ratio 1:1?

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