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RRB NTPC Data Sufficiency — practice questions

Explore 6 free Data Sufficiency questions in RRB NTPC General Intelligence and Reasoning. 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 1–6 of 6.

Find x. Statements: (I) x + 5 = 12. (II) x is a positive integer.Read the answer and worked solution →Is integer n positive? Statements: (I) n > 5. (II) n is divisible by 2.Read the answer and worked solution →Perimeter of rectangle ABCD? Statements: (I) Length = 8 cm. (II) Breadth = 5 cm.Read the answer and worked solution →What is Ravi's age? Statements: (I) Ravi is 4 years older than Aman. (II) Aman is 16.Read the answer and worked solution →RRB NTPC · Data Sufficiency ConceptsRead the answer and worked solution →RRB NTPC · Data Sufficiency RulesRead the answer and worked solution →

Worked practice questions

Find x. Statements: (I) x + 5 = 12. (II) x is a positive integer.

  1. II alone suffices; I does not
  2. I alone suffices; II does not
  3. Both needed together
  4. Insufficient even together
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Correct answer: B. I alone suffices; II does not

I givesx=7. II permits every positive integer, so does not fixx.

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Is integer n positive? Statements: (I) n > 5. (II) n is divisible by 2.

  1. II alone suffices; I does not
  2. Both needed together
  3. I alone suffices; II does not
  4. Insufficient even together
Show answer and solution

Correct answer: C. I alone suffices; II does not

I:n>5 impliespositive. II permits negative,zero andpositive even integers, so cannot answerpositivity.

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Perimeter of rectangle ABCD? Statements: (I) Length = 8 cm. (II) Breadth = 5 cm.

  1. I alone suffices; II does not
  2. II alone suffices; I does not
  3. Insufficient even together
  4. Both needed together
Show answer and solution

Correct answer: D. Both needed together

Either single dimension leaves perimeterundetermined. TogetherL8,B5give2(8+5)=26cm.

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