### Tips and Tricks to Solve Quantitative Aptitude Test Questions on Percentages.

All quantitative aptitude examinations will have questions based on percentage system. Most of the questions from this category are related to change of percentages or successive change of percentages, for example "In a shop price of Laptop which is marked at $1000 was discounted 20% for Christmas eve and further 30% discounted for New Year eve. What is the price of Laptop now?" Here we have provided a set of basic concepts, tips and shortcuts on how to solve percentage problems easily and quickly. Percent means "out of one hundred" or "per 100" and is one way of expressing a part-to-whole relationship. "Part-to-whole" is just the math expression for how many parts or portions you have out of a whole thing. For example, two glasses of juice out of whole eight-glasses would be 2/8, which also equals 25/100, or 25%.
Using a percentage allows us to express this part-to-whole relationship as a whole number instead of as a fraction or decimal; for ex…