A mixture of three types of tea, A, B, and C, are in the ratio 3 5 2. If 10 kg of type C tea are used, what is the total weight of the mixture? If a b = 5 2 and b c = 3 4 and c d = 1 2, find a b c d.
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tỷ số và tỉ lệ 2 in 1
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