Question
Emma baked some wafers and packed them into boxes for her friends. Each box can hold 7 apricot wafers and 4 blueberry wafers. She packed a total of 63 apricot wafers. How many blueberry wafers did she pack altogether?
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Emma baked some wafers and packed them into boxes for her friends. Each box can hold 7 apricot wafers and 4 blueberry wafers. She packed a total of 63 apricot wafers. How many blueberry wafers did she pack altogether?