Question
Gwen had some sweets. She sold 10% of her sweets and gave half of the remainder to her sister. After that, she bought 30 sweets and had a total of 66 sweets in the end. How many sweets did Gwen have at first?
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Gwen had some sweets. She sold 10% of her sweets and gave half of the remainder to her sister. After that, she bought 30 sweets and had a total of 66 sweets in the end. How many sweets did Gwen have at first?