Percentage Aptitude Questions
Percentage is a term or concept which is used in mathematics. A percentage is a number or ration which can be express in the form of fraction of 100. Percentage is usually denoted by using the percent sign, %. It can also be expressed by using the abbreviations “.pct” or “pct”. Sometimes the abbreviation “pc” is also used to denote a percentage value.
A percentage is a dimensionless number or in other words it is a pure number. Percentages are not ratios and it can be expressed as a relationship of the part of the whole.
Calculating percentage value-
The percentage value is calculated by multiplying the given numeric number of the ration by 100. For example to find the percentage value of 50 as a percentage of 1250 we have to compute the ratio 50/1250 value first. After that we have to multiply this value by 100. This will gives the desired percentage value.
To calculate a percentage of a percentage, convert both percentages to fractions of 100, or to decimals. Then multiply both the two values.
For example to calculate 50% of 40% is
50/100 * 40/100 = 0.50 * 0.40 = 0.20 = 20/100 = 20%
Concept of percentage
By a certain percent, we mean that many hundredths. Thus, x percent means x hundredths, written as x%.
To express x% as a fraction we have, x% = x/100
Thus ¼ = (1/4 * 100) % = 25%
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