Percentage
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Percentage Symbol :
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When we say "Percent" we are really saying "per 100"
So 50% means 50 per 100 (50% of this box is green) |
And 25% means 25 per 100 (25% of this box is green) |
Examples
100% means all.
Example:
100% of 80 is 100/100 × 80 = 80
Example:
100% of 80 is 100/100 × 80 = 80
50% means half.
Example:
50% of 80 is 50/100 × 80 = 40
Example:
50% of 80 is 50/100 × 80 = 40
5% means 5/100ths.
Example:
5% of 80 is 5/100 × 80 = 4
Example:
5% of 80 is 5/100 × 80 = 4
A Percent can also be expressed as a Decimal or a Fraction
A Half can be written...
As a percentage: 50%
As a decimal: 0.5
As a fraction: 1/2
A Half can be written...
As a percentage: 50%
As a decimal: 0.5
As a fraction: 1/2
Example: 15% of 200 apples were bad. How many apples were bad?
15% = 15/100
And 15/ 200 × 200 = 15* 200/100 = 15*2= 30 apples
ANS: 30 apples were bad
15% = 15/100
And 15/ 200 × 200 = 15* 200/100 = 15*2= 30 apples
ANS: 30 apples were bad
