Nếu bạn có một túi 13 viên bi đỏ và 12 viên bi xanh, tỷ lệ bi xanh trên tổng số bi là bao nhiêu?

Name: Nếu bạn có một túi 13 viên bi đỏ và 12 viên bi xanh, tỷ lệ bi xanh trên tổng số bi là bao nhiêu?
Brand: cauhoi2025.edu.vn
Price: 29.99 USD
Availability: InStock
Rating: 4.51 (55811 reviews)

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~~$34.99~~ $29.99

Shipping and Returns Policy

Deliver to United States » Shipping Policy «
- Shipping Cost: $5.99
- Handling time: 2-3 business days
- Transit time: 7-10 business days
Eligible for » Returns & Refund Policy « within 30 days from the date of delivery

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