Question
Penelope had 20-cent and 1-cent coins in the ratio of 3 : 4. The total value of the coins was $16. How many 20-cent coins did Penelope have?
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Penelope had 20-cent and 1-cent coins in the ratio of 3 : 4. The total value of the coins was $16. How many 20-cent coins did Penelope have?