Question
Lucy had an equal number of $5 and $10 notes. After spending 42 pieces of $10 and 15 pieces of $5 notes, the ratio of the $5 notes to $10 notes left was 7 : 4. Find the value of the notes at first.
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Lucy had an equal number of $5 and $10 notes. After spending 42 pieces of $10 and 15 pieces of $5 notes, the ratio of the $5 notes to $10 notes left was 7 : 4. Find the value of the notes at first.