Year 9 Interactive Maths - Second Edition

Discount

Shopkeepers sometimes allow the customers to have the article for less than the marked price.  For example, if the marked price is $20, the shopkeeper may sell the article for $18.  The $2 that has been deducted from the marked price is called a discount.

Discounts are often expressed as percentages, and then always as a percentage of the marked price.

So, if an article marked at $20 is sold for $18, then:

We say that the article has been discounted by ten per cent.

Example 20

A jeweller discounts a watch marked at $85 by 20%.
a.  How much is the discount?
b.  What will a customer pay for the watch?

Solution:

a.

So, the discount is $17.

So, the customer pays $68.

Key Terms

marked price, discount, percentage discount