also: いくたり
Used to ask about the number of people. The reading いくにん is more common in modern Japanese; いくたり is a traditional counter reading that may appear in literary or formal contexts.
How many people are coming to the party?
この部屋には幾人入れますか。
How many people can fit in this room?
何人 is the most common way to ask 'how many people' and is more neutral in register. 幾人 is slightly more formal or literary.
Standard kanji spelling for 'how many people'.
Mixed kanji-kana spelling, common in everyday writing.
Compound of 幾 (iku, 'how many') and 人 (nin/tari, counter for people). The reading いくたり uses the traditional counter たり, which is now largely replaced by にん.