Question
The ratio of the number of croissants to the number of tarts in a bakery was 3 : 4. After 3 croissants and 5 tarts were packed into each box, there were a total of 12 croissants and 9 tarts left. Find the total number of croissants and tarts in the bakery at first.
4 m

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The ratio of the number of croissants to the number of tarts in a bakery was 3 : 4. After 3 croissants and 5 tarts were packed into each box, there were a total of 12 croissants and 9 tarts left. Find the total number of croissants and tarts in the bakery at first.