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Algebra Difficulty 2.0 Junior Find the answer United Kingdom

Jane's farm is home to many cats and dogs. At the start of the week the ratio of cats to dogs was $3:5$ . Then 32 cats, but no dogs, arrived and the ratio became $5:3$ . How many dogs are there on Jane's farm?

(A) $12$ (B) $18$ (C) $24$ (D) $25$ (E) $30$

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