Question 1: A pack of 6 bottles of juice costs $9. How much does one bottle cost? Show your working.

Answer: 1.50

Question 2: A box of 12 chocolates costs $4.80. Calculate the price per chocolate.

Answer: 0.40

Question 3: Compare the unit prices of two packs: Pack A has 8 items for $5, and Pack B has 10 items for $6. Which pack offers a better value?

Answer: Pack A

Question 4: A grocery store sells 5 kg of rice for $15 and 8 kg of rice for $24. Which offers a lower price per kg? Show your calculations.

Answer: 3 per kg for first, 3 per kg for second, both equal

Question 5: A 500 ml bottle of juice costs $2.50. What is the cost per litre? Show your working.

Answer: 5.00

Question 6: A shop sells 3 packs of snacks: Pack A (20 grams for $1.20), Pack B (25 grams for $1.50), and Pack C (30 grams for $1.80). Which pack offers the best value per gram? Show your calculations.

Answer: Pack A: 0.06, Pack B: 0.06, Pack C: 0.06, all equal

Question 7: A retailer sells two brands of soap: Brand X costs $3 for 250 g, and Brand Y costs $4 for 400 g. Which brand is cheaper per gram? Show your working.

Answer: Brand X: 0.012, Brand Y: 0.01, Y is cheaper

Question 8: A supermarket offers a 15% discount on a $20 bottle of wine. What is the sale price? Show your working.

Answer: 17.00

Question 9: A box contains 24 pens costing $6.00. A different box contains 36 pens costing $9.00. Which box has a lower unit price per pen? Show your calculations.

Answer: Box 1: 0.25, Box 2: 0.25, both equal

Question 10: Identify the common mistake in the following comparison: A pack of 10 items costs $8, and another pack of 15 items costs $12. The student states the second pack is better value because it costs less per item without calculating. Explain why this is incorrect and show the correct comparison.

Answer: Incorrect because without calculating the unit prices, the student cannot be sure. Correct: Pack 1: $0.80 per item, Pack 2: $0.80 per item, so both are equal.

Question 11: A store sells 5 kg of sugar for $4.25 and 7 kg for $5.95. Which option is more economical? Show your working.

Answer: 5 kg: 0.85 per kg, 7 kg: approx 0.85 per kg, both similar

Question 12: Construct a graph plotting the unit price of different snack packs against their weight in grams. The packs are: 20g for $1.20, 25g for $1.50, 30g for $1.80, and 50g for $3.00. Use the grid to draw the graph.

Answer: Students will draw a scatter point for each pack, with weight on x-axis and unit price on y-axis.