Question
There were some buttons in Packet D and Packet E. After Seth transferred 23 of the buttons from Packet D to Packet E, the ratio of the number of buttons in Packet D to that in Packet E changed to 3 : 7. Find the ratio of the numbers of buttons in Packet D to the number of buttons in Packet E at first.
3 m

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There were some buttons in Packet D and Packet E. After Seth transferred 23 of the buttons from Packet D to Packet E, the ratio of the number of buttons in Packet D to that in Packet E changed to 3 : 7. Find the ratio of the numbers of buttons in Packet D to the number of buttons in Packet E at first.