# Ratio and Proportion Maths Online Quiz Test

Given below is a free online mathematics quiz which includes mcqs questions and answers related to the topic of Percentage. All the individuals who are preparing to appear in any math related exam or just want to improve their problem solving skills, can attempt this test in order to do so with ease.

## Math

1. 20 liters of a mixture contains milk and water in the ratio 5:3. If 4 liters of this mixtures are replaced by 4 liters of milk, the ratio of milk to water in the new mixture will become:

Question 1 of 15

2. A mixture contains alcohol and water in the ratio of 12:5. On adding 14 liters of water, the ratio of alcohol to water  becomes 4:3. The quantity of alcohol in the mixture is:

Question 2 of 15

3. The ratio of a age of man and his wife is 4:3. After 4 years, this ratio will be 9:7. If at the time of the marriage, the ratio was 5:3, the how many years ago they were married?

Question 3 of 15

4. If 0.4 of a number is equal to 0.06 of another number, then the ratio of the numbers is:

Question 4 of 15

5. Find he value of x  in the following proportion :27: :: x:8

Question 5 of 15

6. If a:b = 2:5, then the value of (2a + 3b) : (7a + 5b) is:

Question 6 of 15

7. When x is added to each term of 7:13 the ratio becomes 2:3. The value of x is:

Question 7 of 15

8. Find a third proportional to the numbers 4, 42.

Question 8 of 15

9. The ratio of boys and girls in a school is 9:5. If the total number of students in the school is 1050, the number of boys is:

Question 9 of 15

10. If an alloys contains copper and silver in the ratio 3:7, then the percentage quantity of silver in the alloy is:

Question 10 of 15

11. If 5a + 3b/2a - 3b = 23/5, then the value of a:b is :

Question 11 of 15

12. If 0.4 : 1.4 :: 1.4 : x, the value of x is:

Question 12 of 15

13. The average age of three boys is 25 years and their ages are in the proportion 3 : 5 : 7. The age of the youngest boy is:

Question 13 of 15

14. If 15% of x is the same as 20% of y, then x:y is:

Question 14 of 15

15. Which of the following ratio is the largest?

Question 15 of 15

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