Question
The ratio of the number of tarts to the number of muffins in a bakery was 4 : 5. After 4 tarts and 7 muffins were packed into each box, there were a total of 16 tarts and 12 muffins left. Find the total number of tarts and muffins in the bakery at first.
4 m

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The ratio of the number of tarts to the number of muffins in a bakery was 4 : 5. After 4 tarts and 7 muffins were packed into each box, there were a total of 16 tarts and 12 muffins left. Find the total number of tarts and muffins in the bakery at first.