Question
There were some stickers in Bag A and Bag B. After Caden transferred 15 of the stickers from Bag A to Bag B, the ratio of the number of stickers in Bag A to that in Bag B changed to 2 : 9. Find the ratio of the numbers of stickers in Bag B to the number of stickers in Bag A at first.
3 m

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There were some stickers in Bag A and Bag B. After Caden transferred 15 of the stickers from Bag A to Bag B, the ratio of the number of stickers in Bag A to that in Bag B changed to 2 : 9. Find the ratio of the numbers of stickers in Bag B to the number of stickers in Bag A at first.