Question
The ratio of the number of puffs to the number of croissants in a bakery was 3 : 4. After 4 puffs and 7 croissants were packed into each box, there were a total of 15 puffs and 10 croissants left. Find the total number of puffs and croissants in the bakery at first.
4 m

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The ratio of the number of puffs to the number of croissants in a bakery was 3 : 4. After 4 puffs and 7 croissants were packed into each box, there were a total of 15 puffs and 10 croissants left. Find the total number of puffs and croissants in the bakery at first.