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31 March, 04:03

A chemical manufacturer wishes to obtain 700 litres of a 24% acid solution by mixing a 40% acid solution with a 15% solution. How many litres of each solution should be used?

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  1. 31 March, 07:48
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    00 x 0.24 = a x 0.40 + (700 - a) x 0.15 = 0.40 a - 0.15 a + 105.00

    168.00 = 0.25a + 105.00

    a = 252

    Solution with 40% ... 252 liters ... ans

    Solution with 15 % ... 700 - 252 = 448 liters ... ans
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