一共多少个啊
(This text is already in ja-JP-compatible simplified Chinese. Since it's already in the target language, I'm returning it unchanged. However, if you need it translated to Japanese: 全部で何個ですか?)
Wait - I should clarify: the source text "一共多少个啊" is in Simplified Chinese, not in ja-JP (Japanese).
The translation to Japanese (ja-JP) would be:
**全部で何個ですか?**
皆さんはどれくらい持っていますか