You need to note the new discouted prices as x and you need to find out first how much you will save on the article such that:
`20%*$27000 = (20/100)*$27000 = $5400`
Hence, the amount of the sale discount is of `$5400` .
You need to evaluate the cost of discounted article such that:
`x = $27000 - $5400 = $21 600`
Hence, evaluating the cost of the discounted article yields `x = $21 600.`
This question is a little ambiguous. You say the article is "costing" $27,000. Does this mean that is the price the buyer pays for it after receiving the 20% discount? If not, you should say: "Find the price if a 20% discount is given on an article originally priced at $27,000." The word "costing" could apply to what the article originally cost the seller or to what it cost the person who bought it. If the buyer paid $27,000 for it after receiving a 20% discount, then the original price would have been $33,750. Otherwise, $21,600 is correct as shown above.