TNPSC Group I · Aptitude and Mental Ability
Ratio and Proportion
Direct, inverse and compound ratio, proportion.
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Take a full mock →Q1 · Ratio and Proportion · EASY
If two numbers are in the ratio 7:11 and their sum is 540, what is the larger number?
Q2 · Ratio and Proportion · HARD
The ratio of the ages of father and son is 9:4. After 6 years, the ratio will become 13:7. What is the present age of the son?
Q3 · Ratio and Proportion · EASY
The ratio of boys to girls in a college is 7:5. If there are 420 boys, what is the total number of students in the college?
Q4 · Ratio and Proportion · HARD
In a mixture of 75 liters, the ratio of milk to water is 4:1. How much water should be added to make the ratio 3:2?
Q5 · Ratio and Proportion · MEDIUM
Two numbers are in the ratio 5:7. If 10 is added to each number, the ratio becomes 3:4. Find the smaller number.