ANS:B - 60-65

Iron ore typically contains various minerals, with iron being the primary element of interest. The iron content in Indian iron ore is generally around 60-65 percent. This means that for every 100 parts of the ore, approximately 60-65 parts consist of iron. Higher iron content in iron ore is desirable for steelmaking processes, as it reduces the amount of impurities that need to be removed during the iron refining and steelmaking processes. Therefore, iron ores with higher iron content are often preferred for industrial purposes.