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Mathematics, 31.08.2019 12:30 asvpla

When a bakery opened this morning the ratio of pineapple muffins to the number of mango muffins was 3: 2. after 144 pineapple muffins were sold, the ratio of the number of pineapple muffins to the number of mango muffins changed to 3: 5. how many pineapple muffins were there when the bakery opened in the morning?
answer is 240, but we need ot know how to get to the answer.

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When a bakery opened this morning the ratio of pineapple muffins to the number of mango muffins was...
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