A furniture store was having Easter discount of 15% off its usual price. The GST is at 8%. Wendy used her credit card to purchase a study table and Owen used cash to pay for a similar study table.
- How much did Wendy pay in the end after GST? Round off your answer to the nearest cent.
- How much did Owen pay in the end after GST? Round off your answer to the nearest ten cent.
New study table Usual Price: $400 |
Further Discount: Pay by credit card: 10% off discounted price before GST!
Pay by cash: $60 off discounted price before GST! |
|
Credit Card |
Cash |
Usual Price |
$400 |
$400 |
Less 15% discount |
- $60.00 |
- $60.00 |
Price after 15% discount |
$340.00 |
$340.00 |
Less further discount |
- $34.00 |
- $60 |
Price after further discount |
$306.00 |
$280.00 |
Price after GST of 8% |
$330.48 |
$302.40 |
(a)
New selling price after 15% discount
= 100% - 15%
= 85%
Price of the study table after Easter discount
= 85% x 400
=
90100 x 400
= $340.00
New selling price after 10% further discount
= 100% - 10%
= 90%
Price of the study table after credit card discount
= 90% x 340.00
=
90100 x 340.00
= $306.00
Price to pay after including GST
= 100% + 8%
= 108%
Price of the study table after GST
= 108% x 306.00
=
108100 x 306.00
≈ $330.48 (Round off to nearest cent)
(b)
Price of the study table after cash discount
= 340.00 - 60
= $280.00
Price of the study table after GST
= 108% x 280.00
=
108100 x 280.00
≈ $302.40 (Round off to nearest ten cent)
Answer(s): (a) $330.48; (b) $302.40