Esmeralda works at a jewelry store. She needs to polish and pack some rings for a huge sale. After working for 4 hours the ratio of the number of rings that are ready to the number of rings that she still needs to pack is 4:9. After packing 135 more rings the ratio becomes 9:4. When Esmeralda finishes, how many rings will she have packed in total?

Guest Aug 31, 2022

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Aug 31, 2022