RRB Group D 8-Dec-2013 Shift 1 Solved Paper

Question : 27 of 100

Marks: +1, -0

In what ratio must a grocer mix two varieties of tea costing ₹ 15 and ₹ 20 per kg respectively so as to get a mixture worth ₹ 16.50 per kg?

Solution:

Using the alligation rule:

\;\text " Ratio of quantities "\;

\;{A}/{B}=\;{20-16.5}/{16.5-15}=\;{3.5}/{1.5}=\;{7}/{3}

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