The percentage of land area of old Bihar that forms the State of Jharkhand is –

Explanation

Before the formation of Jharkhand, the total area of undivided Bihar was 173,877 sq. km. Out of this, 79,714 sq. km. area was used for the formation of the state of Jharkhand on 15 November, 2000. Hence, Jharkhand was formed by taking about 45.84% of the land of old Bihar; therefore, the nearest option (b) is correct. At present, the total area of Bihar is 94,163 sq. km.