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How do you work out 40% of 80?

Word Percent is originated from a Latin word. 
Per cent means out of every hundred. (  /100)
we know that, a percent can be written as a fraction and a decimal. 
For solving this kind of problems. Lets see some steps: 
Step 1: Change percentage into fraction 
Step 2: Replace "of" with multiplication symbol (x)
Step 3: Multiply numerator with a whole number 
Step 4: Divide a number that is a numerator by a number that is in the denominator 


                     

                     

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