Lesson 4: Discounts, Mark-ups and Best Buys

Year 10 Mathematics Unit 1 — Block A | Worksheet



Multiple Choice

Q1. A sofa originally priced at $850 is reduced by 20%. What is the sale price?

A) $830 B) $680 C) $870 D) $170

Q2. A retailer buys a jacket for $45 and applies a 60% mark-up. What is the selling price?

A) $72 B) $105 C) $27 D) $81

Q3. Which is the better buy: 2 kg of rice for $8.40, or 5 kg of rice for $19.50?

A) 2 kg for $8.40 B) 5 kg for $19.50 C) They are equal value D) Cannot determine

Q4. An item with a marked price of $200 receives successive discounts of 15% and then 10%. What is the final price?

A) $150 B) $153 C) $170 D) $180

Q5. A store offers "Buy 2, Get 1 Free" on items priced at $15 each. What is the effective discount per item?

A) 25% B) 33.3% C) 50% D) 20%

Short Answer

Q6. A television is marked at $1,200. During a sale it is discounted by 25%. Calculate the sale price and the amount saved. (2 marks)

Q7. A shop buys protein powder for $32 per tub and wants to make a 45% profit. What should the selling price be? If GST must be added at 10%, what is the final price to the customer? (3 marks)

Q8. Compare two mobile phone plans. Plan A: $45/month with 20 GB data. Plan B: $0.80 per day plus $2 per GB used. For a month with 15 GB usage, which plan is cheaper and by how much? (3 marks)

Key Formulas