Translation:Is it far?
What does the お achieve ? I can't really hear any difference. とい、vs とおい。it's not a long vowel like とうい、or a break like with きっぷ。
It expresses a long vowel like う would after an o sound (which one is used depends on the word).
nope but u could make it into "how far is it" by adding 何 before far - 遠い 何遠いですか - How far is it