Question
There were some coins in Bag X and Bag Y. After Peter transferred 34 of the coins from Bag X to Bag Y, the ratio of the number of coins in Bag X to that in Bag Y changed to 2 : 7. Find the ratio of the numbers of coins in Bag Y to the number of coins in Bag X at first.
3 m

Click button first when a symbol is required. X

There were some coins in Bag X and Bag Y. After Peter transferred 34 of the coins from Bag X to Bag Y, the ratio of the number of coins in Bag X to that in Bag Y changed to 2 : 7. Find the ratio of the numbers of coins in Bag Y to the number of coins in Bag X at first.