AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
(C) Three-fourths
Ferrous minerals account for about three-fourths of the total value of production of metallic minerals in India.
Source: Ferrous Minerals, Chapter 5
The answer is directly stated in the textbook: "Ferrous minerals account for about three-fourths of the total value of the production of metallic minerals." Students must remember this specific fraction as it is a frequently asked fact in exams.