"Why is that girl going ?"
Translation:वह लड़की क्यों जा रही है ?
"Kya"( what) and "kyon"(why) are totally different..... Tum kya kha rahi ho? What are you eating?......... tum kyon kha rahi ho? = why are you eating?.......secondly you can start a sentence with "kya"( kya tum ja rahi ho?= Are you going ?) but not with "Kyon"(why are you going = tum kyon ja rahi ho?). Thirdly You can ask yes/no questions using "kya". but not using "kyon". (Kya tum naha rahi ho, are you bathing)). Hth....