Question
There were some erasers in Bag P and Bag Q. After Dylan transferred 15 of the erasers from Bag P to Bag Q, the ratio of the number of erasers in Bag P to that in Bag Q changed to 1 : 8. Find the ratio of the numbers of erasers in Bag Q to the number of erasers in Bag P at first.
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There were some erasers in Bag P and Bag Q. After Dylan transferred 15 of the erasers from Bag P to Bag Q, the ratio of the number of erasers in Bag P to that in Bag Q changed to 1 : 8. Find the ratio of the numbers of erasers in Bag Q to the number of erasers in Bag P at first.