Determining Best Buys — Solutions

1. Calculate the unit price

   1. $3.20 for 400 g: 0.8c per gram ▶ View Solution
   2. $3.00 for 2 L: $1.50 per litre ▶ View Solution
   3. $8.50 for 5 kg: $1.70 per kg ▶ View Solution
   4. $4.80 for 12 eggs: $0.40 per egg ▶ View Solution
   5. $4.20 for 3 kg: $1.40 per kg ▶ View Solution

2. Which is the better buy?

   1. 200 g vs 300 g: 300 g is better value (0.7c/g vs 0.8c/g) ▶ View Solution
   2. 1.5 L vs 2 L: 1.5 L is better value ($1.50/L vs $1.60/L) ▶ View Solution
   3. 750 g vs 1 kg: 1 kg is better value (0.58c/g vs 0.60c/g) ▶ View Solution

3. Chocolate Bars

   250 g vs 400 g block: 400 g block is better value ▶ View Solution

4. Shampoo Comparison

   Shampoo A vs Shampoo B: Shampoo B has the lower unit price ▶ View Solution

5. Orange Juice

   Brand X vs Brand Y: Brand Y is the better buy ▶ View Solution

6. Eggs: Singles vs Dozen

   Singles vs dozen: The dozen is better value ▶ View Solution

7. Budget Shopping

   Two 500 g bags vs 1 kg bag: Buy the 1 kg bag — saves 30c ▶ View Solution

8. Coffee Pods

   Pods A, B, C ranked cheapest to most expensive: C, then B, then A ▶ View Solution

9. Price Per 100 g

   Brand X vs Brand Y (price per 100 g): Brand Y is cheaper ▶ View Solution

10. Fair Price

    Fair price for 1 000 g (unit rate from 600 g = $2.40): $4.00 ▶ View Solution