Question
There were some pens in Bag Q and Bag R. After Michael transferred 15 of the pens from Bag Q to Bag R, the ratio of the number of pens in Bag Q to that in Bag R changed to 1 : 7. Find the ratio of the numbers of pens in Bag Q to the number of pens in Bag R at first.
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There were some pens in Bag Q and Bag R. After Michael transferred 15 of the pens from Bag Q to Bag R, the ratio of the number of pens in Bag Q to that in Bag R changed to 1 : 7. Find the ratio of the numbers of pens in Bag Q to the number of pens in Bag R at first.