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Anna is shopping for Greek yogurt. She has found various options at different stores:
• At Store A:
– A 1 kg tub of Greek yogurt costs $5.99
– A 6-pack of 100g individual cups costs $4.50
• At Store B:
– A 750g tub of Greek yogurt costs $4.79
– A 500g tub costs $3.49
• At Store C:
– A 2 kg family-size tub costs $10.99
– A 4-pack of 150g individual cups costs $3.99
Which purchase will give Anna the best value for her money?
You may find calculating the price per 100g for each container size in the following table useful:
| Amount of Greek Yogurt | Price | Price per 100g |
|---|---|---|
| 1 kg | $5.99 | |
| 6 × 100g = 600g | $4.50 | |
| 750g | $4.79 | |
| 500g | $3.49 | |
| 2 kg | $10.99 | |
| 4 × 150g = 600g | $3.99 |
Let’s calculate the price per 100g for each option:
1. 1 kg tub (Store A):
$5.99 ÷ 10 = $0.599 per 100g
2. 6-pack of 100g cups (Store A):
$4.50 ÷ 6 = $0.75 per 100g
3. 750g tub (Store B):
$4.79 ÷ 7.5 = $0.6387 per 100g
4. 500g tub (Store B):
$3.49 ÷ 5 = $0.698 per 100g
5. 2 kg family-size tub (Store C):
$10.99 ÷ 20 = $0.5495 per 100g
6. 4-pack of 150g cups (Store C):
$3.99 ÷ 6 = $0.665 per 100g
Completed table:
| Amount of Greek Yogurt | Price | Price per 100g |
|---|---|---|
| 1 kg | $5.99 | $0.599 |
| 6 × 100g = 600g | $4.50 | $0.75 |
| 750g | $4.79 | $0.6387 |
| 500g | $3.49 | $0.698 |
| 2 kg | $10.99 | $0.5495 |
| 4 × 150g = 600g | $3.99 | $0.665 |
The best value for Anna’s money is the 2 kg family-size tub from Store C, which costs $0.5495 per 100g of Greek yogurt.
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