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**The cost of Type 1 rice is Rs. 15 per kg and Type 2 rice is Rs. 20 per kg. If both Type 1 and Type 2 are mixed in the ratio of 2 : 3, then the price per kg of the mixed variety of rice is:**

A. Rs. 18
B. Rs. 18.50
C. Rs. 19
D. Rs. 19.50
**Answer: Option A**

## Show Answer

Solution(By Apex Team)

Let the price of the mixed variety be Rs. x per kg.
By rule of alligation, we have:
$\begin{array}{l}\therefore\Large\frac{20-x}{x-15}=\frac{2}{3}\\
\Rightarrow60-3x=2x-30\\
\Rightarrow5x=90\\
\Rightarrow x=18\end{array}$

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