A furniture store was having National Day discount of 20% off its usual price. The GST is at 9%. Sabrina used her credit card to purchase a study table and Mark used cash to pay for a similar study table.
- How much did Sabrina pay in the end after GST? Round off your answer to the nearest cent.
- How much did Mark pay in the end after GST? Round off your answer to the nearest ten cent.
New study table Usual Price: $1150 |
Further Discount: Pay by credit card: 5% off discounted price before GST!
Pay by cash: $15 off discounted price before GST! |
|
Credit Card |
Cash |
Usual Price |
$1150 |
$1150 |
Less 20% discount |
- $230.00 |
- $230.00 |
Price after 20% discount |
$920.00 |
$920.00 |
Less further discount |
- $46.00 |
- $15 |
Price after further discount |
$874.00 |
$905.00 |
Price after GST of 9% |
$952.66 |
$986.50 |
(a)
New selling price after 20% discount
= 100% - 20%
= 80%
Price of the study table after National Day discount
= 80% x 1150
=
95100 x 1150
= $920.00
New selling price after 5% further discount
= 100% - 5%
= 95%
Price of the study table after credit card discount
= 95% x 920.00
=
95100 x 920.00
= $874.00
Price to pay after including GST
= 100% + 9%
= 109%
Price of the study table after GST
= 109% x 874.00
=
109100 x 874.00
≈ $952.66 (Round off to nearest cent)
(b)
Price of the study table after cash discount
= 920.00 - 15
= $905.00
Price of the study table after GST
= 109% x 905.00
=
109100 x 905.00
≈ $986.50 (Round off to nearest ten cent)
Answer(s): (a) $952.66; (b) $986.50