To find out which brand costs less per bag, we need to calculate the price per bag for each type of chips.
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Double Cheese Crisps:
- A 10-pack costs $7.80.
- Price per bag = Total cost / Number of bags
- Price per bag = $7.80 / 10 = $0.78
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Cheddar Skins:
- A 15-pack costs $11.85.
- Price per bag = Total cost / Number of bags
- Price per bag = $11.85 / 15 = $0.79
Now, we compare the prices per bag:
- Double Cheese Crisps: $0.78 per bag
- Cheddar Skins: $0.79 per bag
Thus, the Double Cheese Crisps costs less per bag.