SOLUTION: First store is offering an item at 30% sale. The second store first took 20% off the same item and later to match the first store took an additional 10% off the reduced item.

Question 171081: First store is offering an item at 30% sale.
The second store first took 20% off the same item and later to match the first store took an additional 10% off the reduced item.
If the original price of the item was same in both stores then which store if offering a better deal?
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
the store offering the 30% discount has the better deal. why? there 30% is taken from a higher dollar amount whereas the other store does 20% on the original price and then 10% on that discounted price.
:
x-.3x=.7x(cost)
:
x-.2x=.8x-.1(.8x)=.72x(cost)
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