@tanguatlay,
tanguatlay wrote:
Questions are currently answered in about 15 minutes.
Is the sentence OK? Does it mean that each question is answered about 15 minutes later?
According to my English teacher friend, the above sentence is fine. However, I doubt so because, if the sentences I posted earlier are similar but not appropriate how could the latest sentence be fine?
Thanks
In expressions of time, the preposition 'in' is used to express the time taken for something to happen:
Questions are currently answered in about 15 minutes - questions are currently answered about 15 minutes after they are asked.
You appeared, before, to be using 'in' in expressions of time about frequency of occurrence.
None of these sentence are possible in English, unless you mean that posting a question takes about 30 minutes:
tanguatlay wrote:
Questions are currently posted in about 30 minutes.
Questions are currently posted in about 30 minutes on average.
Questions are currently being posted in about 30 minutes.
Questions are currently posted in about 30 minutes on average.
What I want to say is a question on average is posted every 30 minutes.
None of the sentences mean what is highlighted in red, as I already told you.