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9th Grade Best Buys and Unit Prices Worksheet — Level 3 — Answers

Answer sheet with worked solutions for the 9th Grade ratios & rates worksheet.

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Success TutoringWorksheetsAnswer sheet9th Grade · Mathematics · Ratio & Rates

9th Grade Best Buys and Unit Prices Worksheet — Level 3 — Answers

Find the price for the same amount of each (the unit price), then compare. Show your work.

1.Which is better value: pencils at $17.28 for a pack of 24, or at $5.34 for a pack of 6?

Answer: $17.28 for a pack of 24 ($0.72 per pencil)

  1. First: $17.28 ÷ 24 = $0.72 per pencil
  2. Second: $5.34 ÷ 6 = $0.89 per pencil
  3. The cheaper unit price is better value.
2.Which is better value: juice at $9.40 for 2 L, or at $6.30 for 1 L?

Answer: $9.40 for 2 L ($0.47 per 100 mL)

  1. First: $9.40 ÷ 20 = $0.47 per 100 mL
  2. Second: $6.30 ÷ 10 = $0.63 per 100 mL
  3. The cheaper unit price is better value.
3.Which is better value: oats at $1.60 for 500 g, or at $3.90 for 1 kg?

Answer: $1.60 for 500 g ($0.32 per 100 g)

  1. First: $1.60 ÷ 5 = $0.32 per 100 g
  2. Second: $3.90 ÷ 10 = $0.39 per 100 g
  3. The cheaper unit price is better value.
4.Which is better value: juice at $1.55 for 250 mL, or at $6.70 for 1 L?

Answer: $1.55 for 250 mL ($0.62 per 100 mL)

  1. First: $1.55 ÷ 2.5 = $0.62 per 100 mL
  2. Second: $6.70 ÷ 10 = $0.67 per 100 mL
  3. The cheaper unit price is better value.
5.Which is better value: pencils at $2.28 for a pack of 6, or at $6.60 for a pack of 12?

Answer: $2.28 for a pack of 6 ($0.38 per pencil)

  1. First: $2.28 ÷ 6 = $0.38 per pencil
  2. Second: $6.60 ÷ 12 = $0.55 per pencil
  3. The cheaper unit price is better value.
6.Which is better value: pencils at $4.32 for a pack of 6, or at $13.68 for a pack of 24?

Answer: $13.68 for a pack of 24 ($0.57 per pencil)

  1. First: $4.32 ÷ 6 = $0.72 per pencil
  2. Second: $13.68 ÷ 24 = $0.57 per pencil
  3. The cheaper unit price is better value.
7.Which is better value: juice at $8.90 for 1 L, or at $2.15 for 250 mL?

Answer: $2.15 for 250 mL ($0.86 per 100 mL)

  1. First: $8.90 ÷ 10 = $0.89 per 100 mL
  2. Second: $2.15 ÷ 2.5 = $0.86 per 100 mL
  3. The cheaper unit price is better value.
8.Which is better value: rice at $2.15 for 500 g, or at $4.80 for 2 kg?

Answer: $4.80 for 2 kg ($0.24 per 100 g)

  1. First: $2.15 ÷ 5 = $0.43 per 100 g
  2. Second: $4.80 ÷ 20 = $0.24 per 100 g
  3. The cheaper unit price is better value.
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