Question
The ratio of the number of wafers to the number of tarts in a bakery was 5 : 6. After 5 wafers and 7 tarts were packed into each box, there were a total of 15 wafers and 12 tarts left. Find the total number of wafers and tarts in the bakery at first.
4 m

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The ratio of the number of wafers to the number of tarts in a bakery was 5 : 6. After 5 wafers and 7 tarts were packed into each box, there were a total of 15 wafers and 12 tarts left. Find the total number of wafers and tarts in the bakery at first.