# Orange colour

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

## Correct answer:

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### You need to know the following knowledge to solve this word math problem:

**algebra**- equation
- expression of a variable from the formula
**basic functions**- ratio
- inverse proportion
- direct proportionality

### Units of physical quantities:

### Grade of the word problem:

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