Questions & Answers about دو تیوپ آبی به یک تیوپ قرمز اضافه میشود.
How does the ratio structure work here when there are nouns mixed in with the numbers?
The core ratio is دو به یک (two to one). To specify what is being measured, you place the noun phrase directly after its respective number. The pattern becomes [Quantity 1] + به + [Quantity 2], giving us دو تیوپ آبی به یک تیوپ قرمز (two blue tubes to one red tube).
Why does the English translation say 'tubes of blue' when تیوپ آبی just looks like a noun and an adjective?
You are right that تیوپ آبی (linked by an invisible ezafe as tiyup-e aabi) grammatically translates to 'blue tube'. However, in the specific context of mixing paint or colors, English speakers naturally say 'a tube of blue', so the translation reflects that natural phrasing rather than a literal word-for-word match.
Why is the verb میشود used here instead of an active verb like میکنند?
The verb اضافه میشود is the present passive form of the compound verb اضافه کردن (to add). Because this sentence is an instructional statement focusing entirely on the paints rather than the person mixing them, it naturally uses the passive voice to mean 'is added' or 'becomes added'.
The word تیوپ looks and sounds very similar to the English word 'tube'. Is it a direct loanword?
Yes, تیوپ is borrowed directly from English. Notice how the pronunciation adapts to fit Farsi phonetics: the English 'u' sound is written with یو (yu), and the final 'b' sound hardens into a پ (p).