A furniture store was having Grand Opening discount of 10% off its usual price. The GST is at 9%. Jade used her credit card to purchase a study table and Caden used cash to pay for a similar study table.
- How much did Jade pay in the end after GST? Round off your answer to the nearest cent.
- How much did Caden pay in the end after GST? Round off your answer to the nearest ten cent.
New study table Usual Price: $2100 |
Further Discount: Pay by credit card: 5% off discounted price before GST!
Pay by cash: $20 off discounted price before GST! |
|
Credit Card |
Cash |
Usual Price |
$2100 |
$2100 |
Less 10% discount |
- $210.00 |
- $210.00 |
Price after 10% discount |
$1890.00 |
$1890.00 |
Less further discount |
- $94.50 |
- $20 |
Price after further discount |
$1795.50 |
$1870.00 |
Price after GST of 9% |
$1957.10 |
$2038.30 |
(a)
New selling price after 10% discount
= 100% - 10%
= 90%
Price of the study table after Grand Opening discount
= 90% x 2100
=
95100 x 2100
= $1890.00
New selling price after 5% further discount
= 100% - 5%
= 95%
Price of the study table after credit card discount
= 95% x 1890.00
=
95100 x 1890.00
= $1795.50
Price to pay after including GST
= 100% + 9%
= 109%
Price of the study table after GST
= 109% x 1795.50
=
109100 x 1795.50
≈ $1957.10 (Round off to nearest cent)
(b)
Price of the study table after cash discount
= 1890.00 - 20
= $1870.00
Price of the study table after GST
= 109% x 1870.00
=
109100 x 1870.00
≈ $2038.30 (Round off to nearest ten cent)
Answer(s): (a) $1957.10; (b) $2038.30