Nhân dịp khai trương, một quán trà sữa có chương trình khuyến mãi” Mua 2 tặng 1”. Các bạn An, Bình, Châu cùng đi uống trà sữa và chọn mua loại có giá 27 000 đồng một ly. Hỏi để mua được 3 ly, trung bình mỗi bạn phải góp bao nhiêu tiền?
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1 câu trả lời 2831
Do có chương trình khuyến mãi” Mua 2 tặng 1” nên thực tế các bạn chỉ cần trả tiền 2 cốc là:
2x27 000=54 000(đồng)
để mua được 3 ly, trung bình mỗi bạn phải góp là:
54 000:3=18 000(đồng)
Đáp ssô: 18 000đồng
Nam Nguyen
· 3 năm trước
Đúng , hợp lý
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