Analogy — Coal ranks progression: Peat : Lignite :: Bituminous : ? Select the next higher-rank coal that stands to “Bituminous” as “Lignite” stands to “Peat”.
Verbal Reasoning
Analogy
Difficulty: Easy
Choose an option
Answer
Correct Answer: Anthracite
Explanation
Introduction / Context:This analogy is based on ordered series within a domain. Coal forms a rank sequence by carbon content: Peat → Lignite → Bituminous → Anthracite (increasing carbon, decreasing volatiles).
Given Data / Assumptions:
- Peat is the lowest-rank precursor; Lignite is the next rank.
- Bituminous is followed by Anthracite in standard rankings.
- Granite/Basalt are rocks; Coke is a manufactured fuel.
Concept / Approach:Maintain “X : next rank of X”. Thus Peat : Lignite maps to Bituminous : Anthracite.
Step-by-Step Solution:
1) Identify the rank succession in the first pair.2) Apply the same step to Bituminous.3) Choose “Anthracite”.Verification / Alternative check:Cross-check that alternatives are not naturally occurring higher ranks following Bituminous.
Why Other Options Are Wrong:
- Granite/Basalt: Igneous rocks; irrelevant.
- Coke: Processed carbon product, not a natural coal rank progression.
- None of these: Invalid since Anthracite fits.
Common Pitfalls:Picking “Coke” by associating with carbon; the sequence asked is geological rank, not industrial product.
Final Answer:Anthracite