a solution is obtained by mixing 300g of 25% solution and 400g of 40% solution by mass. Calculate the mass percentage of the resulting solution.
what should be changed in this question to solve it as
25% of x=300 and 40% of x =400
inspite of solving 25% of 300 and 40% of 400
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what should be the change day of the solve 150 and 100 of that value of x.
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