Question
There were some cards in Bag S and Bag T. After Fred transferred 13 of the cards from Bag S to Bag T, the ratio of the number of cards in Bag S to that in Bag T changed to 1 : 4. Find the ratio of the numbers of cards in Bag T to the number of cards in Bag S at first.
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There were some cards in Bag S and Bag T. After Fred transferred 13 of the cards from Bag S to Bag T, the ratio of the number of cards in Bag S to that in Bag T changed to 1 : 4. Find the ratio of the numbers of cards in Bag T to the number of cards in Bag S at first.