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The ratio of North American butterflies to South American butterflies at a park is 5:3. The ratio of South American butterflies to European butterflies is 3:2. There are 30 North American butterflies
The ratio of North American butterflies to South American butterflies at a park is 5:3. The ratio of South American butterflies to European butterflies is 3:2. There are 30 North American butterflies at the butterfly park.