A Modern Approach To Logical Reasoning By R.s. Aggarwal Extra Quality -

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While DS is common in GMAT and CAT, Aggarwal expands it to "two-statement problems" typical of Indian exams. He introduces a decision matrix: (A) statement 1 alone, (B) statement 2 alone, (C) both together, (D) either, (E) neither. The "modern" aspect: he includes coded DS where the statements are in symbolic logic (e.g., P → Q format). A Modern Approach To Logical Reasoning By R.s. Aggarwal