"Kah "is the first sentence for asking question and will be included with a certain words . Just remember 1H 4W (How[Bagaimana] , What [Apa] , When [Bila] , Where [Di mana ] , Who [Siapa] ) 1)Berapakah harga sekuntum bunga itu ? 2) Di manakah dia berada ? 3) Mengapakah semua ini terjadi ? 4) Apakah yang telah berlaku ? 5) Siapakah lelaki itu ?

Siapa, berapa ,mengapa are all examples for question words... you may add kah if those words appear at the beginning of a sentence like ` berapakah harganya?` how much the price ? But you dont need to add kah if those words located at the middle or at the end of a sentence such as in this sentence ` jari awak ada berapa (kesemuanya)?` your fingers are how many (totally)?