Question:
Alice and Ben baked a total 865 cookies. Alice sold 3/5 of her cookies and Ben sold 85 cookies. The number of cookies Alice has left was twice the number of cookies Ben has left. How many cookies has Ben left?

Solution:

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Alice and Ben baked a total 865 cookies. Alice sold 3/5 of her cookies and Ben sold 85 cookies. The number of cookies Alice has left was twice the number of cookies Ben has left. How many cookies has Ben left?