Key facts

  • Treat every statement as true only for that question; do not add outside knowledge or personal opinion.
  • A definite conclusion must follow in every possible arrangement allowed by the given statements.
  • All, some, no, only, if, unless and not are control words; one changed word can reverse the answer.
  • All A are B does not mean all B are A; some A are B can be converted to some B are A; no A are B can be converted to no B are A.
  • In statement-argument questions, a strong argument is relevant, practical and directly tied to the proposal; emotional or exaggerated lines are weak.

Key Points at a Glance

  1. 1

    Treat every statement as true only for that question; do not add outside knowledge or personal opinion.

  2. 2

    A definite conclusion must follow in every possible arrangement allowed by the given statements.

  3. 3

    All, some, no, only, if, unless and not are control words; one changed word can reverse the answer.

  4. 4

    All A are B does not mean all B are A; some A are B can be converted to some B are A; no A are B can be converted to no B are A.

  5. 5

    In statement-argument questions, a strong argument is relevant, practical and directly tied to the proposal; emotional or exaggerated lines are weak.

  6. 6

    An assumption is a hidden support without which the statement or suggested action becomes weak or fails.

  7. 7

    Cause-effect questions need a direct link; check whether a third factor can explain both events before accepting the option.

  8. 8

    Treat this as a mental ability and analytical reasoning topic for CET Senior Secondary preparation; solve these questions by command word first: follows, strengthens, weakens, assumes, explains or should be done.

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What logical reasoning asks

For CET Senior Secondary preparation, this topic belongs with mental ability and analytical reasoning practice rather than outside general knowledge. It trains you to read a short statement, proposal, rule, notice or situation and decide what certainly follows, what is only possible, what is assumed and which reason is strong.

Keep the work practical. A statement may mention an exam hall, a village service centre, a school notice, a district office queue, a family relation or a simple public problem. The setting changes, but the method stays the same: use only the information given, keep the exact wording in mind and reject any option that adds a new fact.

Three standards appear again and again. In statement-conclusion questions, the conclusion must be forced by the statements. In statement-argument questions, the reason must be relevant and practical. In assumption or cause-effect questions, the missing support or likely explanation must fit the given facts without stretching them.

Exam cue: first identify the command word in the question, then judge every option by that command word only.

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