The Original Price Of A CD Player Is 105$. A Discount Of $21 Is Giving. Find The % Of Decrease?
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21 goes into 105 five times. Divide that 5 into 100 to get the percentage discount - I'm not doing all the maths for you !
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Percentages are not really that difficult . Think about the word 'percent' - breaks down as 'per' (for each) cent (100th as in 100th of a dollar). In other words, you're evaluating a value for each 100th of something. In this case, you need to work out what a 100th of 105 is (1.05) Divide this into the $21 discount. Thus 21 / 1.05 + 20 ie, the discount was 20%. Gets a lot easier with practice - eventually you'll be able to do simple ones in your head - Trust me !
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