Q. In Rigveda the rivers Ganga & Yamuna are mentioned as below Answer: Yamuna Thrice, Ganga Once
Notes: The rivers ganga ,Yamuna and saraswati had great prominence in Vedas. Ganga and Yamuna are mentioned together for the first time in Rig Veda. Yamuna is mentioned three times and Ganga is mentioned once in Rig veda.