A pile of cards contains red and blue
cards. The ratio of blue cards to red
cards is 5:7, and...
![subject](/tpl/images/cats/mat.png)
Mathematics, 13.05.2021 17:00 2022mcwhirterbrendan
A pile of cards contains red and blue
cards. The ratio of blue cards to red
cards is 5:7, and there are 15 blue
cards in the pile. What is the total
number of cards in the pile?
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Answers: 3
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