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Quantitative Aptitude Practice Test: Ratio and Proportion
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Here are some tips for solving ratio and proportion problems: - Read the ratio correctly: For example, 2 pink to 6 red should be expressed as 2:6, not 6:2. - Note the units in your calculations - The ratio between two quantities should be of the same kind - When comparing two ratios, their units must be similar - If the ratios are equal like a fraction, then only comparison of 2 ratios can be performed - In ratio, if both the antecedent and the consequent are multiplied or divided by the same number (except 0) then the ratio will remain the same - Write the ratios in their three... Show more
Quantitative Aptitude Practice Test: Ratio and Proportion
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25 Questions

1. The salary of a is 65% more than b, Find the ratio of their salaries.
2. There are 120 colours in a box out of which 55 are hot colours and the rest are cool colours. Find the ratio of 1 / 10th of hot colours and 1 / 5th of the cool colours.
3. A mixture contains milk and water in a ratio 5 : 9. When 5 liters of water is added the ratio changes to 5 : 11. Find the quantity of milk in the initial mixture.
4. The ratio of two numbers is 8 : 9. Find their product if their sum is 187.
5. The ratio of salaries of two employees is 8 : 11. If the salaries of both combined is 3,30,205 rupees, find the salary of the first employee.
6. A mixture contains two liquids a and b in a ratio 9 : 16. Find the ratio of their prices if the mixture costs 175 rupees and the ratio of their prices in the mixture is 3 : 4.
7. There are 5 terms in a series 94, 85, 81, 80, 90. If the first two numbers are increased by 20 and the last two numbers are increased by 20%, find the ratio of the terms of the series then formed.
8. A sum of money is distributed among a, b, c and d in the proportion 3 : 4 :: 6 : 5. If b gets 1260 rupees less than c, find the share of a.
9. Out of 40 students of a class 12 are boys. If the average weight of a boy is 50 kg and the average weight of a girl is 20% less than a boy, find the ratio of the total weight of the boys to the total weight of the girls.
10. There are 3 terms in a series if the first term is twice as the third term and the second term is half as of the third term, find the ratio of the series.
11. 4 numbers d, b, c and a are in proportion. Find the value of a in terms of b if d = 2b and b = 5c.
12. The students of science commerce and arts are in a ratio 2 : 3 : 2. If the pass percentage of commerce is 40% and the total students passing in commerce are 12, find the total students combined of all three sections.
13. The ratio of ages of 2 sisters is 4 : 5. After 7 years the ratio of their ages will be 5 : 6. Find their current ages.
14. The total number of employees in a company is 777. If there are 4 departments with employee ratio 3 : 3 : 6 : 9, find the employees in the department with maximum number of employees.
15. There are 5 terms a, b, c, d and e in a series. A = 4b, b = 7c, c = 2d, d = half of e and e = 12. Find the ratio of the series.
16. The ratio of 3ages of 3 people is 3 : 7 : 9. If the sum of their ages is 190 years, find the difference between the ages of the eldest and the youngest.
17. The total number of students in a class is 150. If 30% of the student are absent, out of remaining 40% students passed the test. Find the ratio of students absent to the students failed the exam.
18. The ratio of two numbers is 11 : 12. If the sum of the numbers is 253, find the difference between the numbers.
19. Out of 110 students 20 failed the exam. Out of the remaining 20% passed the exam with distinction. Find the ratio of the students who passed the exam to the students who passed the exam without distinction.
20. Three numbers are in a ratio 7 : 8 : 9. If the difference between the largest and the smallest number is 8, find the middle number.
21. The total number of fishes in a batch are 230. If the ratio of 5 categories of fishes is 5 : 5 : 4 : 3 : 6. Find the greatest difference between any two categories of fishes.
22. The ratio of ages of two brothers is 6 : 7. Find the age of the elder brother if at the time of the birth of younger brother the elder brother was 6 years old.
23. The product of two numbers is 693. If the numbers are in a ratio 7 : 11, find the difference between the numbers.
24. Two numbers are in a ratio 7 : 13. If 12 is added to the numbers the ratio turns to 61 : 103, find the numbers when 109 is added to them.
25. Find the ratio of prime numbers less than 40 to the composite numbers less than 40 except 1.

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