Adam wants to buy a hi-fi system.
The usual price of the hi-fi system is $900.
There is a storewide promotional discount of 10%.
As a privileged card member, he is entitled to another 10% discount of the discounted price.
How much does he pay for the hi-fi system in all?
|
Price of the hi-fi system (in %) |
Price of the hi-fi system (in $) |
Usual Price |
100% |
$900 |
Less storewide discount |
- 10% |
- $90 |
Price with storewide discount |
90% |
$810 |
Price before deducting another 10% discount |
100% |
$810 |
Less additional 10% discount |
- 10% |
- $81 |
Price after another 10% discount |
90% |
$729 |
Discount based on the storewide 10% promotion
= 10% x 900
=
10100 x 900
= $90
Amount that Adam has to pay after 10% promotion
= 900 - 90
= $810
Further discount after another 10% discount
= 10% x 810
=
10100 x 810
= $81
Amount that Adam pays for the hi-fi system in all
= 810 - 81
= $729
Answer(s): $729