Percentage calculation Shortcut Tricks

We all know that the most important thing in competitive exams is Mathematics. That doesn’t mean that other sections are not so important. But if you need a good score in exam then you have to score good in maths. A good score comes with practice and practice. All you need to do is to do math problems correctly within time, and you can do this only by using shortcut tricks. Again it does not mean that you can’t do maths without using shortcut tricks. You may have that potential that you may do maths within time without using any shortcut tricks. But so many other people may not do the same. So Percentage calculation shortcut tricks here for those people. We try our level best to put together all types of shortcut methods here. But it possible we miss any. We appreciate if you share that with us. Your little help will help so many needy.

Percentage is a very important chapter and it uses most chapters for calculation.Shortcut Tricks is based on, to find the number that is obtain in this type of questions. we go through the shortcut tricks.

This type of problem are given in Quantitative Aptitude which is a very essential paper in banking exam. Under below given some more example for your better practice.

when we say 100 percent in mathematical notation we write 100% so 35 % means 35 per 100 and 65% means 65 per 100 it is a proportion per hundred and it is used to find marks, profit percent or loss percent of a particular product. it is also used in find out the depreciation at the rate percent per annul.

we can expressed ration number as percent, Here is some different percent related problems are given with shortcut tricks below.

Example 1 :

Find what percent is 4% of 5% ?
( 4 x 100 x 100 / 100 x 5 ) % = 80%.

Example 2 :

1 / 3 of 1206 is what % of 134 ?
Let 1 x 1206 / 3 = y% of 134 . Then, y x 134 / 100= 402
x = ( 402 x 100 / 134 ) = 300.

Example 3 :

M is what % of N ?
100 M / N %.

Example 4 :

How is 3 / 2% expressed as a percentage ?
3 x 100 / 2 = 150%.

Example 5 :

35% of 250 + 25% of 350
Solution:
35 X 2.50 + 25 X 3.50 = 87.5 + 87.5 = 175
( We can write 250 / 100 = 2.50 and 350 / 100 = 3.50 when any number divide by 100 then put the two decimal point above the number which help in quick calculation ).

Example 6:

20% of 400 + 60% of 800
Solution:
( 20 x 400 / 100 ) + ( 60 x 800 / 100 )
= ( 80 + 48 )
= 128.

Example 7 :

48 % of 200 gm – 18% of 400 gm
Solution:
48 x 2 = 96, 18 x 4 = 72, ( 96 – 72 ) = 24.

Example 8 :

5 is what percent of 50 ?
Solution:
(5 / 50) = 10 and (100 / 10 )% = 10%.

Example 9 :

How is 3 / 2 % expressed as a decimal fraction ?