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Lydia baked a total of 144 chocolate chip cookies and peanut butter treats for Valentine's Day. Initially, the ratio of chocolate chip cookies to peanut butter treats was 5:3. After Lydia's friends ate
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Lydia baked a total of 144 chocolate chip cookies and peanut butter treats for Valentine's Day. Initially, the ratio of chocolate chip cookies to peanut butter treats was 5:3. After Lydia's friends ate 2/5 of her chocolate chip cookies and some of her peanut butter treats, the cookies outnumbered the treats 6 to 1. How many peanut butter treats did she have left?

User Dmitri Soshnikov
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Originally, lydia has 90 cookies and 54 treats. her friends eat 36 cookies, she has 54 cookies left, this is 6 times the treats left, so she has 9 treats left 
User Ashwini Dhekane
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