Question
Lucy had some mini cupcakes. She sold 30% of her mini cupcakes and gave half of the remainder to her sister. After that, she bought 39 mini cupcakes and had a total of 67 mini cupcakes in the end. How many mini cupcakes did Lucy have at first?
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Lucy had some mini cupcakes. She sold 30% of her mini cupcakes and gave half of the remainder to her sister. After that, she bought 39 mini cupcakes and had a total of 67 mini cupcakes in the end. How many mini cupcakes did Lucy have at first?