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? Wha
t is the correct unit price?
2 answers:
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
You must divide $30 by 12 to find out how much each pair costs. The correct unit price is $2.50 per pair.
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