# Percentage Tricks

Percentage is very important in competitive examinations, and if you look, you will find that percentage can be used in most topics of arithmetic topic. Percentage Shortcut Tricks which are given here are most important for any competitive exam.  Often questions related to परसेंटेज शॉर्टकट ट्रिक्स are asked in examinations, then in this post we will tell you the easiest way to solve percentage questions using 100% Useful Percentage Tricks.

इस लेख में हम कुछ उपयोगी और सबसे महत्वपूर्ण प्रतिशत शॉर्टकट ट्रिक्स प्रदान करने जा रहे हैं। इन शॉर्ट ट्रिक्स की मदद से शिक्षार्थी सीखेंगे कि बहुत कम समय में प्रतिशत आधारित समस्याओं को कैसे हल किया जाए। क्योंकि सभी प्रतियोगी परीक्षाओं के लिए समय और सटीकता बहुत महत्वपूर्ण पैरामीटर है।

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## 100% Useful Percentage Shortcut Tricks

 Trick 1

If of A is equal to y% of B then – Example: What percent of 40 kg is 10 kg?

Solution:

Let x percent of 40 kg is 10 kg Example: What percent is 2 kg of 26 kg?

Solution:

Let y percent of 26 kg is 2 kg Trick 2

If A is x% more than that of B, then B is less than that of A by If A is x% less than that of B, then B is more than that of A by Example: If A’s salary is 25% more than B’s salary, then B’s salary is how much lower than A’s salary?

Solution: Example: If A’s income is 25% less than B’s income then by what percent is B’s income more than that of A?

Solution: Check Here – How to Prepare Maths for Competitive Exams

 Trick 3

If A is x% of C and B is y% of C, then Example: Two numbers are respectively 20% and 50% of a third number. What percent is the first number of the second?

Solution: Example: Two numbers are respectively 24% and 30% of a third number. What percent is the first number of the second?

Solution: Trick 4

If a number first increased by x% and then decreased by x%, then the net is always a decrease which is equal to x% of x

Or Example: The salary of a worker first increased by 10%, and later decreased by 10%, what is the net effect on his salary?

Solution: Example: The salary of a worker is first increased by 12% and, thereafter it was reduced by 12%, what was the change in the salary?

Solution: Also Check – Maths Formulas

 Trick 5

If the value is increased successively by x% and y%, then final increase is given by If the value is decreased successively by x% and y%, then final increase is given by If the value first is increased by x% and then decreased by y%, then there is decrease or increase, according to the +ve and –ve sign respectively.

If the value first is decreased by x% and then increased by y%, then there is decrease or increase, according to the +ve and –ve sign respectively.

Example: A number is first increased by 10% and then it is further increased by 20%. The original number is increased altogether by:

Solution: Example: The population of a city is decreased by 20% in a year. In the next year, the population is again decreased by 30%. Find percent decrease in the population of the city from the original population.

Solution: Example: A number is first increased by 20% and the resulting number is decreased by 10%. What is the overall change in the number as a percentage?

Solution: Example: If the price of book first is decreased by 25% and then increased by 20%, the net change in price of the book will be:

Solution: 