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TISSNET Data Sufficiency — practice questions

Explore 3 free Data Sufficiency questions in TISSNET Datainsights. Open each question or exercise to read its content, reference answers and available explanation.

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Data Sufficiency questions and exercises with answers

Showing questions 1–3 of 3.

Is integer n positive? (1) n^2 > n. (2) n^3 > n.Read the answer and worked solution →What is the value of x? (1) x is an even prime. (2) x^2 = 4.Read the answer and worked solution →Is x + y > 10? (1) x > 5. (2) y > 5.Read the answer and worked solution →

Worked practice questions

Is integer n positive? (1) n^2 > n. (2) n^3 > n.

  1. Statement (1) ALONE is sufficient, (2) is not.
  2. Statement (2) ALONE is sufficient, (1) is not.
  3. BOTH statements TOGETHER are sufficient; neither alone.
  4. EACH statement ALONE is sufficient.
  5. (1) and (2) TOGETHER are NOT sufficient.
Show answer and solution

Correct answer: B. Statement (2) ALONE is sufficient, (1) is not.

1. Identify what is being asked: this is a **Data Sufficiency** question. 2. Apply the standard approach for this question type to evaluate each option. 3. The correct answer is **B. Statement (2) ALONE is sufficient, (1) is not.** — it satisfies the conditions of the stem. _Source: GMAT Focus DI Question Format Guide (examhunter.net)_

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What is the value of x? (1) x is an even prime. (2) x^2 = 4.

  1. Statement (1) ALONE is sufficient, (2) is not.
  2. Statement (2) ALONE is sufficient, (1) is not.
  3. BOTH statements TOGETHER are sufficient; neither alone.
  4. EACH statement ALONE is sufficient.
  5. (1) and (2) TOGETHER are NOT sufficient.
Show answer and solution

Correct answer: A. Statement (1) ALONE is sufficient, (2) is not.

1. Identify what is being asked: this is a **Data Sufficiency** question. 2. Apply the standard approach for this question type to evaluate each option. 3. The correct answer is **A. Statement (1) ALONE is sufficient, (2) is not.** — it satisfies the conditions of the stem. _Source: GMAT Focus DI Question Format Guide (examhunter.net)_

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Is x + y > 10? (1) x > 5. (2) y > 5.

  1. Statement (1) ALONE is sufficient, (2) is not.
  2. Statement (2) ALONE is sufficient, (1) is not.
  3. BOTH statements TOGETHER are sufficient; neither alone.
  4. EACH statement ALONE is sufficient.
  5. (1) and (2) TOGETHER are NOT sufficient.
Show answer and solution

Correct answer: C. BOTH statements TOGETHER are sufficient; neither alone.

1. Identify what is being asked: this is a **Data Sufficiency** question. 2. Apply the standard approach for this question type to evaluate each option. 3. The correct answer is **C. BOTH statements TOGETHER are sufficient; neither alone.** — it satisfies the conditions of the stem. _Source: GMAT Focus DI Question Format Guide (examhunter.net)_

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How to practise

  1. Choose a Data Sufficiency question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
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