Orange colour

For the painter to get orange, he has to mix yellow and red in a ratio of 3:4. If he used 8 liters of red, how many liters of orange did he mix?

Final Answer:

x =  14 l

Step-by-step explanation:

$$\begin{gathered} b=8\text{l} \\ a=3/4\cdot b \\ x=a+b \\ a=3/4\cdot 8 \\ x=a+8 \\ 4a=24 \\ a-x=-8 \\ Row2-\frac{1}{4}\cdot Row1\to Row2 \\ -x=-14 \\ x=\frac{-14}{-1}=14 \\ a=\frac{24}{4}=6 \\ a=6 \\ x=14=14\text{l} \end{gathered}$$

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