s1volu

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• Registered: 2018-11-22
• Topics: 2
• Posts: 357

On 2019-05-29 15:11:56 ｜ Show All Posts

3＃

Well, it's base 3rd grade math. One draw is 10 coupons, and you need 2200 draws. So how do you count how much coupons it needs?

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