List of top General Aptitude Questions on Ratio and Proportion asked in CUET (UG)

If 36: 84 :: 42: X, then the value of X, is:

The ratio of the ages of A and B is 4:5. After 6 years, the ratio becomes 5:6. What is the present age of A?

If the ratio between the first number and the second number is 2:3 and that between the second and third number is 5:3, then the first number is:

In a class of 40 students, the ratio of boys and girls is 3 : 2 and the average marks scored by boys is 42 and that by girls is 46. What is the average marks scored by the whole class?