Question
The ratio of Aria's cards to Samantha's cards at first was 3 : 7. After Aria gave Samantha 100 cards, the ratio of Aria's cards to Samantha's cards is 1 : 4. What was the number of cards they had altogether?
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The ratio of Aria's cards to Samantha's cards at first was 3 : 7. After Aria gave Samantha 100 cards, the ratio of Aria's cards to Samantha's cards is 1 : 4. What was the number of cards they had altogether?