9th Grade Best Buys and Unit Prices Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the 9th Grade ratios & rates worksheet.
Success TutoringWorksheetsAnswer sheet9th Grade · Mathematics · Ratio & Rates9th Grade Best Buys and Unit Prices Worksheet — Level 2 — Answers
Find the price for the same amount of each (the unit price), then compare. Show your work.
1.Which is better value: juice at $4.90 for 1 L, or at $1.00 for 250 mL?
Answer: $1.00 for 250 mL ($0.40 per 100 mL)
- First: $4.90 ÷ 10 = $0.49 per 100 mL
- Second: $1.00 ÷ 2.5 = $0.40 per 100 mL
- The cheaper unit price is better value.
2.Which is better value: pencils at $5.28 for a pack of 12, or at $9.36 for a pack of 24?
Answer: $9.36 for a pack of 24 ($0.39 per pencil)
- First: $5.28 ÷ 12 = $0.44 per pencil
- Second: $9.36 ÷ 24 = $0.39 per pencil
- The cheaper unit price is better value.
3.Which is better value: rice at $3.35 for 500 g, or at $8.10 for 1 kg?
Answer: $3.35 for 500 g ($0.67 per 100 g)
- First: $3.35 ÷ 5 = $0.67 per 100 g
- Second: $8.10 ÷ 10 = $0.81 per 100 g
- The cheaper unit price is better value.
4.Which is better value: oats at $3.20 for 1 kg, or at $2.60 for 500 g?
Answer: $3.20 for 1 kg ($0.32 per 100 g)
- First: $3.20 ÷ 10 = $0.32 per 100 g
- Second: $2.60 ÷ 5 = $0.52 per 100 g
- The cheaper unit price is better value.
5.Which is better value: oats at $2.05 for 500 g, or at $10.60 for 2 kg?
Answer: $2.05 for 500 g ($0.41 per 100 g)
- First: $2.05 ÷ 5 = $0.41 per 100 g
- Second: $10.60 ÷ 20 = $0.53 per 100 g
- The cheaper unit price is better value.
6.Which is better value: oats at $11.40 for 2 kg, or at $3.90 for 1 kg?
Answer: $3.90 for 1 kg ($0.39 per 100 g)
- First: $11.40 ÷ 20 = $0.57 per 100 g
- Second: $3.90 ÷ 10 = $0.39 per 100 g
- The cheaper unit price is better value.
7.Which is better value: juice at $2.05 for 250 mL, or at $6.70 for 1 L?
Answer: $6.70 for 1 L ($0.67 per 100 mL)
- First: $2.05 ÷ 2.5 = $0.82 per 100 mL
- Second: $6.70 ÷ 10 = $0.67 per 100 mL
- The cheaper unit price is better value.
8.Which is better value: oats at $1.70 for 500 g, or at $2.80 for 1 kg?
Answer: $2.80 for 1 kg ($0.28 per 100 g)
- First: $1.70 ÷ 5 = $0.34 per 100 g
- Second: $2.80 ÷ 10 = $0.28 per 100 g
- The cheaper unit price is better value.
Marking tips
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