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

What number should be added to the terms of 3:7 to make the ratio 2:3?
A and B divided a sum of rs 84,000 in the ratio 4:3. If rs X is added to each of their shares, the ratio becomes 5:4, then the value of X is:
A dog takes 4 leaps for every 7 leaps of a cat, but 4 leaps of a dog are equal to the 6 leaps of the cat. The ratio of speeds of dog and cat is:
The sum of three numbers is 1600. The second number and the third number are in the ratio 11:18. While the first number and the third number are in the ratio 1:6. The second number is: