SSC SSC Selection Post (Phase 13) 2025 Mock Test General Science Chemistry Periodic Table

In the manufacture of steel, Iron ore, coking coal and lime stone are required in the ratio of approximately _____.

1
2 ∶ 4 ∶ 1
2
1 ∶ 4 ∶ 2
3
4 ∶ 3 ∶ 1
4
4 ∶ 2 ∶ 1
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