Question
The ratio of the number of wafers to the number of puffs in a bakery was 3 : 4. After 5 wafers and 8 puffs were packed into each box, there were a total of 15 wafers and 12 puffs left. Find the total number of wafers and puffs in the bakery at first.
4 m

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The ratio of the number of wafers to the number of puffs in a bakery was 3 : 4. After 5 wafers and 8 puffs were packed into each box, there were a total of 15 wafers and 12 puffs left. Find the total number of wafers and puffs in the bakery at first.