बिहार में ग्रामीण जनसंख्या का प्रतिशत क्या है ? - What is the percentage of rural population in Bihar? - Bihar Me Gramin Jansankhya Ka Pratishat Kya Hai ? Bihar Gk in hindi, Population 80.45 question answers in hindi pdf 88.71 questions in hindi, Know About 75.75 Bihar Gk online test Bihar Gk notes in hindi quiz book 89.96