In what ratio must a mixture of 11% sugar strength be mixed with that of 25% sugar strength so as to get a new mixture of 13% sugar strength?
Let $$x$$ units of 11% sugar strength be mixed $$y$$ units of of 25% sugar strength.
According to ques,
=> $$11x+25y=13(x+y)$$
=> $$11x+25y=13x+13y$$
=> $$13x-11x=25y-13y$$
=> $$2x=12y$$
=> $$\frac{x}{y}=\frac{12}{2}=\frac{6}{1}$$
$$\therefore$$ Required ratio = $$6:1$$
=> Ans - (B)
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