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percentage question for algebra
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22 Nov 2018, 18:38
22 Nov 2018, 18:38
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I came across a percent question that was phrased something like this:
A store reduced the sale price of an item by another 25%, which was a total of 55% off of the original price. What is the original price of the item?
How do you solve a question like this, if you are not given any "seed" number.
A store reduced the sale price of an item by another 25%, which was a total of 55% off of the original price. What is the original price of the item?
How do you solve a question like this, if you are not given any "seed" number.
Re: percentage question for algebra
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22 Nov 2018, 22:41
22 Nov 2018, 22:41
Expert Reply
Daveburton wrote:
I came across a percent question that was phrased something like this:
A store reduced the sale price of an item by another 25%, which was a total of 55% off of the original price. What is the original price of the item?
How do you solve a question like this, if you are not given any "seed" number.
A store reduced the sale price of an item by another 25%, which was a total of 55% off of the original price. What is the original price of the item?
How do you solve a question like this, if you are not given any "seed" number.
You will have to give the exact wordings to get any help.
In the present wordings, what does ' another" mean. Does original price mean the cost price or the initial selling price.
What I can understand is..
There is another discount of 25% means there was some discount earlier. This discount + the earlier, say x%, one adds up to 55% of original price..
So, \(P*\frac{75}{100}*\frac{100-x}{100}=\frac{45}{100}*P.......75(100-x)=45*100.....75x=7500-4500=3000....x=\frac{3000}{75}=40\)
so the first discount was 40%
But, in the given way, you cannot get the exact original value
Re: percentage question for algebra
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25 Sep 2019, 10:48
25 Sep 2019, 10:48
Agree that this would need more precise wording. Otherwise, usually with percent questions, I start with 100 as the OG value and see what I can get from there.
