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Sand and cement are in the ratio 6:5 in a mixture when 71 kg how much sand must be added to the mixture so as to make the ratio 8:5 |
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Answer» Answer: 12.9 Step-by-step explanation: 6x + 5X = 71 x = 6.45 (6*6.45 +a)/(5*6.45)=8/5 a=12.9 |
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