Question
There were some erasers in Bag J and Bag K. After Ian transferred 35 of the erasers from Bag J to Bag K, the ratio of the number of erasers in Bag J to that in Bag K changed to 3 : 5. Find the ratio of the numbers of erasers in Bag K to the number of erasers in Bag J at first.
3 m

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There were some erasers in Bag J and Bag K. After Ian transferred 35 of the erasers from Bag J to Bag K, the ratio of the number of erasers in Bag J to that in Bag K changed to 3 : 5. Find the ratio of the numbers of erasers in Bag K to the number of erasers in Bag J at first.