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Class 7 maths · A.12 · Unit rates

Better buy: compare two packs

Work out the price of one in each pack, then compare.

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See worked examples
  1. Pack A: 12 notebooks for $18.60. Pack B: 2 notebooks for $1.30. Which pack costs less per notebook? Write A or B.

    Answer: B

  2. Pack A: 4 apples for $6.60. Pack B: 7 apples for $4.90. Which pack costs less per apple? Write A or B.

    Answer: B

  3. Pack A: 12 pens for $10.20. Pack B: 3 pens for $2.85. Which pack costs less per pen? Write A or B.

    Answer: A

Tip: Work out the price of one in each pack, then compare.

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