"Which one is the best" is obviously a question format, so it makes sense that " which one the best is " should be the correct form. This is very good instinct, and you could even argue that the grammar is good, but at best it's unnatural. When using the word " which " is it necessary to still use " one " after asking a question or do " which " and " which one " have the same meaning?

Understanding the Context

Where do you draw the line on the difference between " which " and " which one " when asking a question that involves more than one answer? Both 'a single' and 'one single' are correct and commonly used phrases in English. They are interchangeable and can be used to emphasize the singularity of an item or person. One-to-one is used when you talk about transfer or communications.

Key Insights

You may use one-to-one when you can identify a source and a destination. For eg., a one-to-one email is one sent from a single person to another, i.e., no ccs or bccs. In maths, a one-to-one mapping maps one element of a set to a unique element in a target set. One-on-one is the correct adjective in your example. See Free ...

Final Thoughts

Which one is grammatically correct or better? I have two assignments, One of them is done. I have two assignments, One of which is done. I watched a video tutorial that the teacher said the ... pronouns - "One of them" vs. "One of which" - English Language Learners ...

0 The phrase 'one of the' is used to describe something/someone from the same group. There are many birds on the tree. One of the birds is red. This means we are talking about all the birds on the three but then when you want to be specific about the red bird, you use one of the.