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OpenStudy (insa):
A shop owner blends three types of tea. A,B and C, in the ratio 6:4:7. If the mass of tea C in the mixture is 28kg, find the difference in the masses of the other two types of tea.
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OpenStudy (anonymous):
A would be 6/7 x 28kg = 24 kg B would be 4/7 x 28kg = 16 kg so the difference of the masses is 24 - 16 = 8kg
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