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GMAT · Quantitative — Data Sufficiency · Tamil Nadu, India

Quantitative — Data Sufficiency for the GMAT Exam — Tamil Nadu candidates

12% of the GMAT test plan. Determining whether two statements, individually or combined, provide enough information to answer a question — without solving it. Calibrated for Tamil candidates.

Behind every published pass rate is a distribution of which topics caused most of the failures. This is one of those topics. Quantitative — Data Sufficiency sits at roughly 12% of the Graduate Management Admission Test content distribution — Data Sufficiency (DS) is unique to the GMAT and the most conceptually different question type most test-takers encounter. The goal is NOT to find the answer — it is to determine if the answer CAN be found. Candidates who try to solve DS questions like PS questions waste time and make systematic errors. Pass rates for the GMAT are published annually by the awarding body and vary by cohort and locale. For Tamil Nadu candidates preparing for GMAT, the calibration of study to local context matters: Tamil Nadu uses 7.5% NEET government-school reservation and runs separate state-quota counselling. JEE Main and GATE candidate volumes are second only to Maharashtra.

Pass rates for GMAT (Tamil Nadu, India) are published periodically by the awarding body.

Common failure modes

These are the patterns that cause most candidates to lose marks on this topic. Recognising them in advance is half the work.

  • !Solving for a specific numerical value instead of testing whether a unique answer is possible
  • !Forgetting that Statement 2 must be evaluated independently before testing both together
  • !Assuming constraints from Statement 1 when evaluating Statement 2 in isolation

Study tips

  • 1Memorize the five DS answer choices and their logic (A, B, C, D, E) before test day — eliminate systematically.
  • 2For "is X > 5" type questions, find cases where X > 5 AND cases where X ≤ 5 to prove insufficiency.
  • 3Never re-use Statement 1 when evaluating Statement 2 — treat them as completely separate universes.
  • 4NEET-UG is offered in Tamil (தமிழ்) at all TN centres. Many state-board students prefer Tamil-medium for biology questions but English-medium for physics and chemistry — you must choose one medium for the entire paper.
  • 5For TN MBBS admission: register on TN Health website for the 7.5% government-school reservation if eligible — separate from MCC counselling.
  • 6GATE Chennai and Coimbatore centres fill fastest; submit your GATE application within 72 hours of opening to secure your preferred centre.

Sample GMAT Quantitative — Data Sufficiency questions

These sample items mirror the format and difficulty of real GMAT questions. Practice with thousands more on the free Koydo question bank.

  1. 1

    Is integer n divisible by 6? (1) n is divisible by 12. (2) n is divisible by 9.

    • AStatement (1) alone is sufficient, but statement (2) alone is not sufficientCorrect
    • BStatement (2) alone is sufficient, but statement (1) alone is not sufficient
    • CBoth statements together are sufficient, but neither alone is sufficient
    • DEach statement alone is sufficient
    Why this answer?

    If n is divisible by 12, it is divisible by all factors of 12, including 6. So Statement 1 is sufficient. Statement 2 alone: n could be 9 (not divisible by 6) or 18 (divisible by 6) — insufficient. Answer: A.

Frequently asked questions

What are the five answer choices for every Data Sufficiency question?
(A) Statement 1 alone sufficient; (B) Statement 2 alone sufficient; (C) Both together sufficient, neither alone; (D) Each statement alone sufficient; (E) Neither statement nor both together sufficient. The same five choices appear on every DS question.
What is the GMAT pass rate for Tamil candidates?
Pass rates for GMAT candidates in Tamil Nadu, India are published periodically by the awarding body. Practice questions, full-length simulations, and weak-area drills are the highest-impact way to improve your odds.
How long should Tamil candidates study Quantitative — Data Sufficiency for the GMAT?
For most candidates, focused mastery of Quantitative — Data Sufficiency requires 20–40 hours of deliberate practice — drilling sample questions, reviewing failure modes, and timing yourself against exam conditions. Tamil Nadu uses 7.5% NEET government-school reservation and runs separate state-quota counselling. JEE Main and GATE candidate volumes are second only to Maharashtra. Combine Quantitative — Data Sufficiency study with full-length mock exams in the final two weeks before your test date.

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