A furniture store was having Lunar New Year discount of 30% off its usual price. The GST is at 9%. Winnie used her credit card to purchase a book shelf and Seth used cash to pay for a similar book shelf.
- How much did Winnie pay in the end after GST? Round off your answer to the nearest cent.
- How much did Seth pay in the end after GST? Round off your answer to the nearest ten cent.
New book shelf Usual Price: $2100 |
Further Discount: Pay by credit card: 15% off discounted price before GST!
Pay by cash: $10 off discounted price before GST! |
|
Credit Card |
Cash |
Usual Price |
$2100 |
$2100 |
Less 30% discount |
- $630.00 |
- $630.00 |
Price after 30% discount |
$1470.00 |
$1470.00 |
Less further discount |
- $220.50 |
- $10 |
Price after further discount |
$1249.50 |
$1460.00 |
Price after GST of 9% |
$1361.96 |
$1591.40 |
(a)
New selling price after 30% discount
= 100% - 30%
= 70%
Price of the book shelf after Lunar New Year discount
= 70% x 2100
=
85100 x 2100
= $1470.00
New selling price after 15% further discount
= 100% - 15%
= 85%
Price of the book shelf after credit card discount
= 85% x 1470.00
=
85100 x 1470.00
= $1249.50
Price to pay after including GST
= 100% + 9%
= 109%
Price of the book shelf after GST
= 109% x 1249.50
=
109100 x 1249.50
≈ $1361.96 (Round off to nearest cent)
(b)
Price of the book shelf after cash discount
= 1470.00 - 10
= $1460.00
Price of the book shelf after GST
= 109% x 1460.00
=
109100 x 1460.00
≈ $1591.40 (Round off to nearest ten cent)
Answer(s): (a) $1361.96; (b) $1591.40