Question
There were some pencils in Bag V and Bag W. After Nick transferred 25 of the pencils from Bag V to Bag W, the ratio of the number of pencils in Bag V to that in Bag W changed to 2 : 7. Find the ratio of the numbers of pencils in Bag V to the number of pencils in Bag W at first.
3 m

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There were some pencils in Bag V and Bag W. After Nick transferred 25 of the pencils from Bag V to Bag W, the ratio of the number of pencils in Bag V to that in Bag W changed to 2 : 7. Find the ratio of the numbers of pencils in Bag V to the number of pencils in Bag W at first.