- UNIT
PRICE
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- Example
1 | Example
2 | End of Page
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- If you want to compare
the costs of goods, you need to determine what units, from one
good to the next, you want to compare. You do this by finding
the unit price of each good.
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- Examples:
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- 1. Scott really likes
chocolate bars, and wants to get the best deal possible on them.
Is it better for him to buy 3 for $2.25 or each one at $ .79
each.
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- a) Determine the cost
of each chocolate bar by dividing $ 2.25 by 3
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- It is cheaper for Scott
to buy 3 chocolate bars for $2.25 because they work out to be
$ .75 each compared to $ .79 which they would cost if he bought
them separately.
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- 2. Becky eats cereal
for breakfast every morning. Is it better for her to buy a 550
g box of cereal for $2.50, or a 1 kg box for $5.00?
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- a) Work out the cost
per gram of the 550 g box (divide by 550)
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- 550 g costs $ 2.50
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- 1 g costs
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- 1 g of cereal from the
550 g box costs $ 0.004545
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- b) Work out the cost
per gram of the 1 kg (1000 g) box
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- 1000 g costs $ 5.00
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- 1 g costs
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- 1 g of cereal from the
1000 g box costs $ 0.005
- Working out the cost
per gram of each box of cereal, Becky realizes that it is a better
deal for her to buy the 550 g box.
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