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31 August, 22:51

A clothing store charges $30 for 12 pairs of socks. A student says that the unit price is $0.40 per pair. What is the error? What is the correct unit price?

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Answers (2)
  1. 31 August, 22:58
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    You must divide $30 by 12 to find out how much each pair costs. The correct unit price is $2.50 per pair.
  2. 31 August, 23:04
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    Their error is that they divided 12 by 30, instead of 30 by 12 in order to get the price per pair

    the correct unit price is $2.50 per pair

    2.5 * 12 = 30
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