# Ratios and Percentages

## Percentage Error

It is hard for one to take a measurement and get an exact result. Percentage error is a little degree in percent at which a known length is measured above/below its actual value. The error that might be made during the measurement could be either positive or negative, in any ways just know that error […]

## Percentage Gain

Percentage Gain: Every Transaction is profitable, but when you sell article below its cost price, it is thus a Loss. Gain:= Selling Price(SP) – Cost Price(CP) Example 1: Chisom bought an article #250 and sold it #300. What gain did she make? Solution:CP = #250SP = #300Gain = SP – CP = #300 – #250

## How to find percentage

How to find percentage: A percentage of any quantity is a degree by which that very quantity exists. It is another form of Proportion, Ratio or even Fraction. Note that a percentage of any quantity at its normal existence is 100 and it is represented with the simbol “%”. Examples of percentages are:x%, y%, z%

## Proportions in mathematics

Proportions in mathematics has to do with the method of representing the comparisons of two or more quantities and it usually contains units. There are three types of proportions in mathematics, which are: Direct or Simple proportion: This type of proportion compares two quantities in a way that when one quantity increases, the other quantity

## Ratios

Ratios are numerical way/method used to compare two quantities of the same type, the quantities can be weight, money, ages, marks, length, volume, Area etc.When two quantities are being compared, they can be in fraction or separated by column in-between them, example x/y or x:y respectively. If a/b and x/y are two different ratios given,

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