Questions & Answers about ما رنگ سبز را از نسبت یک به یک به دست میآوریم.
How is the ratio "one to one" constructed here, and how would I say a different ratio like "three to two"?
It uses the pattern [Numeral] + به + [Numeral]. In Farsi, the preposition به acts just like the English word "to" in this context. Here we have یک به یک for "one to one". For "three to two", you simply replace the numbers to get سه به دو.
How is the noun نسبت (ratio) grammatically linked to the numbers یک به یک?
They are linked using the ezafe vowel (pronounced "-e"), making it نسبتِ یک به یک (nesbat-e yek be yek). The entire phrase یک به یک functions as a modifier describing the ratio, so the ezafe is necessary to connect the noun to its description.
The verb به دست میآوریم literally means "we bring to hand". Is this compound verb only used for physical objects?
No, به دست آوردن is highly versatile. While it can mean to physically acquire something, you will frequently see it used for abstract acquisitions, such as obtaining a mathematical result, gathering information, or, as in this sentence, achieving a specific color mixture.
Why is the direct object marker را used after رنگ سبز?
We use را because we are referring to a specific, definite concept: "the green color" as a distinct entity that we are trying to obtain from this exact mixture. If we dropped it, the sentence would vaguely mean we are obtaining "some green," which sounds unnatural when discussing a precise formula.