List of top Quantitative Aptitude Questions on Ratio and Proportion asked in ATMA

The ratio of the number of boys to girls in a school with 660 students is 8 : 3. How many more girls should be admitted to the school to make the ratio 1 : 1?
The ratio of the number of boys and girls in a college is 7 :3. If 30% of the boys and 20% of the girls are adults, then what percentage of the total students is NOT adult?
If the diagonals of two squares are in the ratio of 3 : 8. What will be the ratio of their area?
If A : B = 5 : 3 and B : C = 7 : 5, then what is the value of A : B : C?
If\((x^3y^3): (x^2+xy+y^2) 7:1\)and\((x^2y^2): (xy)=9: 1\),then what is the ratio between x and 8y?
The ratio of milk and water in a solution is 4:1. If 5 litres of water is added to to 25 litres of the solution, then what would be the ratio of milk to water in the final solution?
A man owns \(\frac{2}{3}\) of the market research beauro business and sells \(\frac{3}{4}\) of his shares for Rs. 75000. What is the value of Business?
A crate of oranges contains one bruised mango for every forty oranges in the crate. If three out of every four bruised oranges are considerably unsalable and there are 12 unsalable oranges in the crate then how many oranges is there in the crate?
A man spends \(\frac{2}{5}\) of his salary on house rent, \(\frac{3}{10}\) of his salary on food and \(\frac{1}{8}\) of his salary on conveyance. if he has Rs.1400 left with him, find his expenditure on food.
The ratio of the number of marbles between A and B is 27 : 39 and that with B and C is 117:119. If C has 1071 number of marbles with him then find the total number of marbles among A, B and C.
A bag contains Rs.2 and Rs.10 coins in the ratio 21:34 respectively, which amounts to Rs.3438, then find the number of Rs.10 coins.
A man divides Rs.52,500 between his son and his daughter in the ratio 6:9. How much did his daughter get?
A box contains pens and pencils in the ratio 2:7. If there are 28 pencils in the box, then what is the number of pens present in the box?
The ratio of chickens to pigs to horses in a farm is 15:7:3. If there are 300 horses in the farm, then what is the number of chickens?