Sec 1 - App of Percentage (Profit & Loss, GST, Discount)

A bag costs $28. 

If the bag is sold for $40, it means that ... (select all that applies)

• a profit of $12 would be made.

• the profit made as a percentage of the cost price would be

  $=\left(\frac{12}{28}\times100\right)\%$ .

• the profit made as a percentage of the cost price would be $=\left(\frac{12}{40}\times100\right)\%$ .

A vase costs $50. 

If the vase is sold for $40, it means that ... (select all that applies)

• there will be a loss of $10.

• the loss as a percentage of the selling price would be 25%.

• the loss as a percentage of the cost price would be 20%.

A car which costs $74 000 is sold at a loss of 10% on the cost price.

Find the selling price of the car.

A necklace priced at $580 is sold for $464.

Find the percentage discount.

A oven costs $270 before GST.

If the GST is 7%, it means that ... (select all that applies).

• the selling price of the oven is now 107%.

• the selling price of the oven is now 93%.

• $270 is taken as 100%.

The marked price of a washing machine is $600. A discount of 6% is given during a sale.

Find the sale price of the washing machine.

A sofa is sold for $533 after a discount of 18%.

Calculate the marked price of the sofa.

A dining table costs $640 before GST.

Given that the GST is at 7%, what is the amount Eason has to pay for the dining table?

A printer is sold for $642 inclusive of 7% GST.

What is the marked price of the printer?

• $600

• $597.06

• $686.94

• $690.32

The marked price of a scarf is $160. During a sale, it was sold for $100.

Find the percentage discount given at the sale.