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Optym Core Computer Science Core Computer Science Medium

Direction (3 of 4 questions): Read the information given below carefully and answer the...

Optym technical mcq question, verified with a worked answer. Free to practise - no sign-up.

Direction (3 of 4 questions): Read the information given below carefully and answer the questions that follow:

A, B, C, D, E, F and G are seven students at a school, who are studying in seven different Classes V, VI, VII, VIII, IX, X and XI. Every one of them likes a particular subject viz. English, Hindi, Physics, Chemistry, Mathematics, History and Geography. Students, Classes, and subjects can always be in different order as given.

B likes History and does not study in Class VII. The one who likes English studies in Class IX. The one who studies in Class V, likes Chemistry. F likes Physics. C is studying in Class VI and doesn't like Geography. E is studying in Class X and likes Mathematics. D likes Chemistry. G doesn't like English, and G is not in Class VII or VIII. F is not in Class VIII.

Which subject does A like?

Choose one option.
Show answer & explanation
Answer: C. C) English

The person who likes English is in Class IX. All other candidates for Class IX are eliminated by their preferred subjects or class exclusions, leaving A as the student in Class IX who likes English.

Step-by-step Derivation:
Step 1: Clue states: The one who likes English studies in Class IX.
Step 2: B likes History, C is in VI, D is in V (Chemistry), E is in X (Math), F likes Physics, G is in XI.
Step 3: Student A is the only remaining student for Class IX.
Step 4: Therefore, A likes English.