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Find the Ratio in Which Rice at ₹7.20 per Kg, Be Mixed with Rice at ₹5.70 per Kg to Produce a Mixture Worth ₹6.30 per Kg. - Mathematics

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MCQ

Find the ratio in which rice at ₹7.20 per kg, be mixed with rice at ₹5.70 per kg to produce a mixture worth ₹6.30 per kg.

Options

  • 1 : 3

  • 2 : 3

  • 3 : 4

  • 4 : 5

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Solution

2 : 3
Explanation:
By the rule of alligation,

\[\begin{array}{cc}
720 paise\phantom{...........}570 paise\\
\setminus \phantom{............}/ \\
\ce{\underset{630paise}{Mean Profit}}\\
/\phantom{............} \setminus \\
60paise \phantom{..............}90paise
\end{array}\]
Required ratio = 60 : 90 = 2 : 3
Concept: Ratio and Proportion (Entrance Exam)
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