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(IGP) IAS Pre Paper - 2: GS - Basic Numeracy - Percentage
Basic Numeracy
Percentage
Percentage
‘Per cent’ means ‘per hundred’. It is given by % symbol. Here x% means x per hundred or . x/100 Thus, any percentage can be converted into an equivalent fraction by dividing it by 100.
eg 20%=20/100=1/5; 150%=150/100=3/2
Also, any fraction or decimal can be converted into its equivalent percentage by multiplying with 100.
eg 1/5=1/5X100=20%; 3/2=3/2X100 = 150%
Important Formulae
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